Incomplete Dominance & Co- Dominance. MEDELIAN GENETICS.

Incomplete Dominance & Co-Dominance

MEDELIAN GENETICS

NONMEDELIAN GENETICSNEITHER

THIRDBLEND / MIX

RR = Homozygous

R’R = Heterozygous(Creates THIRD Phenotype)

R’R’ = Homozygous

RR = RED R’R’ = WHITEPINKR R’=

HOMOZYGOUS HOMOZYGOUSHETEROZYGOUS

NONMEDELIAN GENETICS

RedWhitePink

RR = Red

R’R’ = White

RR’ = Pink

RR’ RR’

R R’

R

R’

R R

R

RR’

R’ R’ R’

Genotype:_____ _____ _____

Phenotype:______ ______ ______

RR RR’ R’R’

Red Pink White

1 (25%) 2 (50%) 1 (25%)

1 (25%) 1 (25%)2 (50%)

1 (25%) 2 (50%)

2 (50%)

1 (25%)


BB = BLUE B’B’ = REDB B’ PURPLE=

BLUEREDPURPLE

BB = BLUEBB’ = PURPLEB’B’ = RED

BB’ B’B’

B B’

B’

B’

B B’

B B’

B’ B’

B’ B’

HOMOZYGOUS HOMOZYGOUSHETEROZYGOUS

Genotype:_____ _____ _____

Phenotype:______ ______ ______BLUE REDPURPLE

BB’ B’B’BB0 (0%) 2 (50%) 2 (50%)

0 (0%) 2 (50%) 2 (50%)

0 (0%) 2 (50%) 2 (50%)

2 (50%)

http://www.google.com/imgres?imgurl=http://www.amoleflower.net/wp-content/uploads/2011/10/Blue-Flowers.jpg&imgrefurl=http://www.amoleflower.net/blue-flowers/&usg=__UskShl9zY2sNdU3n4EP_VLA26oQ=&h=311&w=468&sz=29&hl=en&start=5&sig2=aGbGEOm3MdSxn4TIqoVt5Q&zoom=1&tbnid=6Ng-uScw8sECkM:&tbnh=85&tbnw=128&ei=zgMjT9DUH8PWtgeUn4T_Aw&prev=/search?q=BLUE+FLOWER&um=1&hl=en&safe=active&sa=N&rls=com.microsoft:*&tbm=isch&um=1&itbs=1

http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/d/dd/Red_flower_open.jpg&imgrefurl=http://en.wikipedia.org/wiki/File:Red_flower_open.jpg&usg=__9RwPiNq16ezPD1iQt1tZNCtNs1w=&h=1712&w=2288&sz=1196&hl=en&start=12&sig2=aKL86E2f5lB6OGnAvea7bw&zoom=1&tbnid=luNIFmp_Adm0UM:&tbnh=112&tbnw=150&ei=6AMjT6yrHc62twfCpbSjCw&prev=/search?q=RED+FLOWER&um=1&hl=en&safe=active&sa=N&rls=com.microsoft:*&tbm=isch&um=1&itbs=1

http://www.google.com/imgres?imgurl=http://www.forestscene.com/Flowers/Blue-Purple-Flower.JPG&imgrefurl=http://www.forestscene.com/Flowers/slides/Blue-Purple-Flower-orig.html&usg=__6hQ-E5PHSkjh35h7kNo0ARWglbI=&h=806&w=1209&sz=196&hl=en&start=2&sig2=m5BDPTTmhCcBO4K3Vtw5uA&zoom=1&tbnid=xmm0M8JGdfvE5M:&tbnh=100&tbnw=150&ei=tgMjT-aDLInJtgf_u9T7Aw&prev=/search?q=BLUE+RED+PURPLE+FLOWER&um=1&hl=en&safe=active&sa=N&rls=com.microsoft:*&tbm=isch&um=1&itbs=1


• Incomplete Dominance Practice Problems

NONMEDELIAN GENETICSBOTH BOTH

CAPITAL

BB = HomozygousBW = HeterozygousWW = Homozygous

WW = White

HOMOZYGOUS

BB = Black

HOMOZYGOUS

Black & White B W =

HETEROZYGOUS


BB = Black

HOMOZYGOUS

WW = White

HOMOZYGOUSHETEROZYGOUSB W = Black & White

WhiteBlackBlack & White

WW = WhiteBW = Black & WhiteBB = Black

BB BW

Genotype:_____ _____ _____

Phenotype:______ ______ ______

BB BW WW

Black Black & White White

B B

B

W

B

B B

BB

W

B

W2 (50%) 2 (50%) 0 (0%)

2 (50%) 2 (50%) 0 (0%)

2 (50%) 2 (50%) 0 (0%)0 (0%)


PurpleOrangePurple & Orange

PP = PurplePO = Purple & Orange OO = Orange

PO PO

PHETEROZYGOUS

OO = OrangePP = Purple

HOMOZYGOUS HETEROZYGOUSO= Purple & Orange

P O

P P

PO

P

O OO

OP

Genotype:_____ _____ _____

Phenotype:______ ______ ______

PP PO OO

Purple Purple & Orange Orange

1 (25%) 2 (50%) 1 (25%)

1 (25%) 1 (25%)2 (50%)1 (25%) 1 (25%)

1 (25%)2 (50%)


• Co-Dominance Practice Problems

(NON)MEDELIAN GENETICS

Complete dominance, Codominance, Incomplete

dominance



dominance

(NON)MEDELIAN GENETICS


dominance



dominance



dominance

A red cow and a white cow have roan (spotted)

offspring.



dominance



dominance

A black mouse and a white

mouse have grey offspring in the F1 generation.



dominance

A green pea plant and a yellow pea

plant have all green offspring.

Incomplete Dominance & Co- Dominance. MEDELIAN GENETICS.

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Transcript of Incomplete Dominance & Co- Dominance. MEDELIAN GENETICS.