872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 124

BASIC

MOLEC

ULA R

BIO L

OGY

BASIC

MOLEC

ULA R

BIO L

OGY Unit 3

DNA and RNA structure

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 224

BASIC

MOLEC

ULA R

BIO L

OGY

S e ctio n C P ro p e rtie s o f N u cle ic A cid s

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 324

BASIC

MOLEC

ULA R

BIO L

OGY

Today

BASIC

MOLEC

ULA R

BIO L

OGY

rsquo1 Summary of last time s lesson and a little about the bonds in proteins

2 Bases nucleosides and nucleotides

3 Phosphodiester bonds

4 DNA RNA sequence

5 The DNA double helix

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 424

BASIC

MOLEC

ULA R

BIO L

OGY

The history of the discoveryof DNA structure

=http www youtube com watchv sf0YXnAFBs8

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 224

BASIC

MOLEC

ULA R

BIO L

OGY

S e ctio n C P ro p e rtie s o f N u cle ic A cid s

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 324

BASIC

MOLEC

ULA R

BIO L

OGY

Today

BASIC

MOLEC

ULA R

BIO L

OGY

rsquo1 Summary of last time s lesson and a little about the bonds in proteins

2 Bases nucleosides and nucleotides

3 Phosphodiester bonds

4 DNA RNA sequence

5 The DNA double helix

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 424

BASIC

MOLEC

ULA R

BIO L

OGY

The history of the discoveryof DNA structure

=http www youtube com watchv sf0YXnAFBs8

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 324

BASIC

MOLEC

ULA R

BIO L

OGY

Today

BASIC

MOLEC

ULA R

BIO L

OGY

rsquo1 Summary of last time s lesson and a little about the bonds in proteins

2 Bases nucleosides and nucleotides

3 Phosphodiester bonds

4 DNA RNA sequence

5 The DNA double helix

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 424

BASIC

MOLEC

ULA R

BIO L

OGY

The history of the discoveryof DNA structure

=http www youtube com watchv sf0YXnAFBs8

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 424

BASIC

MOLEC

ULA R

BIO L

OGY

The history of the discoveryof DNA structure

=http www youtube com watchv sf0YXnAFBs8

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 524

BASIC

MOLEC

ULA R

BIO L

OGY

Bases nucleosides nucleotides

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 624

BASIC

MOLEC

ULA R

BIO L

OGY

The bases of DNA

d purines and pyrimidines because they resemble the structures of two copmpound

Pyrimidine

Purine

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 724BASIC

MOLEC

ULA R

BIO L

OGY

C C

C

C

The bases of RNA

Urasil

thymine there is a very similar base called urasil

only a small difference between thymine and urasil

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 824BASIC

MOLEC

ULA R

BIO L

OGY

Nucleosides

= +N u cle o sid e b a se p e n to se su g a

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 924BASIC

MOLEC

ULA R

BIO L

OGY

Pentose sugarsRibose and Deoxy-ribose

- =pent 5 A pentose sugar has 5 carbon atom

The pentose sugar in RNA is called ri The pentose sugar in DNA is called deox

- = De minus without= Deoxy minus without oxygen

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 624

BASIC

MOLEC

ULA R

BIO L

OGY

The bases of DNA

d purines and pyrimidines because they resemble the structures of two copmpound

Pyrimidine

Purine

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 724BASIC

MOLEC

ULA R

BIO L

OGY

C C

C

C

The bases of RNA

Urasil

thymine there is a very similar base called urasil

only a small difference between thymine and urasil

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 824BASIC

MOLEC

ULA R

BIO L

OGY

Nucleosides

= +N u cle o sid e b a se p e n to se su g a

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 924BASIC

MOLEC

ULA R

BIO L

OGY

Pentose sugarsRibose and Deoxy-ribose

- =pent 5 A pentose sugar has 5 carbon atom

The pentose sugar in RNA is called ri The pentose sugar in DNA is called deox

- = De minus without= Deoxy minus without oxygen

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 724BASIC

MOLEC

ULA R

BIO L

OGY

C C

C

C

The bases of RNA

Urasil

thymine there is a very similar base called urasil

only a small difference between thymine and urasil

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 824BASIC

MOLEC

ULA R

BIO L

OGY

Nucleosides

= +N u cle o sid e b a se p e n to se su g a

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 924BASIC

MOLEC

ULA R

BIO L

OGY

Pentose sugarsRibose and Deoxy-ribose

- =pent 5 A pentose sugar has 5 carbon atom

The pentose sugar in RNA is called ri The pentose sugar in DNA is called deox

- = De minus without= Deoxy minus without oxygen

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 824BASIC

MOLEC

ULA R

BIO L

OGY

Nucleosides

= +N u cle o sid e b a se p e n to se su g a

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 924BASIC

MOLEC

ULA R

BIO L

OGY

Pentose sugarsRibose and Deoxy-ribose

- =pent 5 A pentose sugar has 5 carbon atom

The pentose sugar in RNA is called ri The pentose sugar in DNA is called deox

- = De minus without= Deoxy minus without oxygen

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 924BASIC

MOLEC

ULA R

BIO L

OGY

Pentose sugarsRibose and Deoxy-ribose

- =pent 5 A pentose sugar has 5 carbon atom

The pentose sugar in RNA is called ri The pentose sugar in DNA is called deox

- = De minus without= Deoxy minus without oxygen

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1024BASIC

MOLE C

ULA R

BIO L

OGY

Nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1124BASIC

MOLE C

ULA R

BIO L

OGY

Nucleotides

= +N u cle otid e n u cle osid e p h o sp h a t

nucleoside

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1224BASIC

MOLE C

ULA R

BIO L

OGY

A nucleoside can have one or morephosphate groups bound covalently at

the 3rsquo 5rsquo or 2rsquo (only in ribonucleic acids)

rsquoIn D N A an d R N A th e p h osp h ates are b ou n d to th e 5 car

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1324BASIC

MOLE C

ULA R

BIO L

OGY

To summarizehellip

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1424BASIC

MOLE C

ULA R

BIO L

OGY

Phosphodiester bonds

t b o n d s o f rib o n u cle o tid e s o r d e oxy rib

Sugar-phosphate backbone

Nucleic acids are polymers of nu

They are polynucleotides

=2 nucleotides dinucleot

=3 nucleotides trinucleot

hellipEtc

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1524BA

SIC

MOLE C

ULA R

BIO L

OGY

rsquoetween the 5 hydroxyl group of sugar in the one n

DNA an RNA as or entat on 5rsquo en

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1624BA

SIC

MOLE C

ULA R

BIO L

OGY

DNA an RNA as or entat on 5rsquo enand 3rsquo end

OH

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1724BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

-RNA is writ te n i n the one letter ab br evi at ion of th

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1824BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

rsquoe se quence of DNA and RN A is written fro m 5 e nd to

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 1924BA

SIC

MOLE C

ULA R

BIO L

OGY

The sequence of DNA RNA

- - -S o t hi s s eq uence in DNA wi ll be A G C T

- - -and in RNA i t will be A G C U

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2024BA

SIC

MOLE C

ULA R

BIO L

OGY

The DNA Double Helix

G pairs with C and T pairs wit

-The strands are anti paralle

This means their orientation are in differ

5rsquo

3rsquo 5rsquo

3rsquo

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2124

BA

SIC

MOLE C

ULA R

BIO L

OGY

The bases are held togetherby hydrogen bonds

Between A and T there are 2

Between G and C there are 3

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2224

BA

SIC

MOLE C

ULA R

BIO L

OGY

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2324

BA

SIC

MOLE C

ULA R

BIO L

OGY

Letrsquos look at a 3D animationof the double helix

= amp =http www youtube com watchv ZGHkHMoyC5I feature related

872019 Unit3NucleicAcidStructure

httpslidepdfcomreaderfullunit3nucleicacidstructure 2424

BA

SIC

MOLE C

ULA R

BIO L

OGY

Next time

bull Replication

bull Transcription