Welcome and introductions Overview of the lab section Lab safety and clean-up
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Transcript of Welcome and introductions Overview of the lab section Lab safety and clean-up
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1. Welcome and introductions
2. Overview of the lab section
3. Lab safety and clean-up
4. Lab 1: Insect diversity and adaptation
5. Intro to Lab 2: The scientific method
Today’s outline
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Lab safety and cleanliness
1. Read Appendix A carefully2. Emergency equipment and procedures3. Properly dispose of wastes4. Clean up during and after the lab5. Wash your hands
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Part A.3 (magnification)
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Part A.3 (magnification)
Count: 55 o.u. = 0.5 mm
Divide: 1 o.u. = 0.5 mm / 55 o.u. = 0.009 mm
Convert: 1 o.u. = 0.009 mm x 1000 = 9 ųm
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Large differencesare rare
Small differences are common
Introduction to statistics
When should we get excited about an observed difference?
2critical
Fre
quen
cy (
prob
abili
ty)
Difference
Do not reject null
Reject null
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Well
Choices
Screenfloor
Isopods
Lid
Hole
Stopper
Passageway
Gate
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Sir Charles Darwin(1809-1882)
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GENETICS
$100
$200
$300
$400
$500
$1000
In eukaryotes, a structure composed of DNA and proteins that bears part of the geneticinformation of the cell.
One of many discrete units of hereditary information located on a chromosome andconsisting of DNA.
The alternate form of a gene.
A particular place along the length of a chromosome where a given gene is located.
In a diploid organism, having two identical alleles for a given trait.
The change in genetic structure of a population.
What is a chromosome?
What is a gene?
What is an allele?
What is a locus?
What is homozygous?
What is evolution?
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Lab4 (Population genetics):
Trait value
Fre
quen
cy
This lab (Genetic variability):
Trait value Trait value
High diversity Low diversity
Trait value
Lab5 (local adaptation):
Pop. 2Pop. 1
Trait value
Fre
quen
cy
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Siberia Alaska
Bering Sea
Chukchi Sea
Siberia Alaska
Bering Sea
Chukchi Sea
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Terrestrialgene flow
Marine
gene flow
Terrestrialgene flow
Marine
gene flow
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SiberiaAlaska
Bering Sea
Chukchi Sea
Reindeer(Rangifer tarandus fennicus)
Image credits: instaar.colorado.edu, homestudy.ihdea.com, www.fresnochaffeezoo.cxm
Caribou(Rangifer tarandus granti)
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Clean up
11. a. Interpret your gel
b. Input your data
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Soldier
Worker
Pheidole rhea
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Shade
Sun
Impatiens walleriana
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Part D (density of stomata)
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10 cm
Ichthyostega (365 MYA)?
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Exercise 4
– Singing
– Keeled sternum
–“Duck” bill
– Stiff tail
– Small body
– 6:0→1
– Webbed feet
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– Warbling song
Ostrich Goose Duck Robin Myrtle w. Nash. w.
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