Chapter 4

Question 1

Genetic drift

Answer 1

Blind luck causing unpredictable evolution

Question 2

Hardy-Weinberg equilibrium

Answer 2

No change in allele frequency over generations, large populations, random mating, no mutations or natural selection

Question 3

Selección

Answer 3

Those with specific phenotypes survive to reproductive maturity or produce more offspring than others

Question 4

Overdominance

Answer 4

Heterozygotes have higher fitness than homozygotes

Question 5

Underdominance

Answer 5

Homozygotes have higher fitness than heterozygotes

Question 6

Frequency-dependant selection

Answer 6

Being chosen based off of how rare it is. Rare = advantage

Question 7

Mutation-selection balance

Answer 7

Rate of an allele being eliminated by selection = rate of new copies being made by mutation

Question 8

Wahlund effect

Answer 8

If there is is significant migration, you’ll end up with more homos than HW predicts (probably looking at 2 populations)

Question 9

Instantaneous rate of increase r

Answer 9

R > 0 is growth, r < 0 is reduction