Lec. 36 Flashcards
Evolution I
1
Q
HWE equation
A
p2 + 2pq + q2 = 1.0
2
Q
p2
A
Homozygous Dominant genotype
3
Q
q2
A
Homozygous reccesive genotype
4
Q
2pq
A
Heterozygote
5
Q
How to get the allele frequencies
A
f(B) = f(BB) + 1/2f(Bb) = p
f (b) = f (bb) + 1/2f(Bb) = q
6
Q
Expected genotype frequencies
A
f(BB)= f(B) x f(B) = p2
f(Bb)= 2 x f(B) x f(b)= 2pq
F(bb)= f(b) x f(b) = q2
7
Q
If the observed match the expected is the population in Harty Wineburg Equilibrium?
A
YES
8
Q
A
9
Q
If the observed does not match the expected is the population in HWE?
A
NO
9
Q
Who discovered the idea of Natural Selection
A
Charlese Darwin
9
Q
Darwin’s Inferences
A
- Individuals who inherit traits give them a higher probability of surviving and having more offspring
- this leads to the accumulation of favorable traits in population over generations
9
Q
A
9
Q
Darwin’s major observations
A
- Individuals in a population vary
- Traits are inherited from parents to offspring
- Species produce more offspring that can survive
9
Q
A
10
Q
Evidence of Evolution
A
- Direct Observation (in nature, in captivity/lab)
- Fossil Evidence
- Anatomy & Homology
- Convergence
- Biogeography
10
Q
What is the study of evolutionary relationships?
A
Phylogenetics (works to understand patterns of genes/species)
