Module 10: Population Genetics

Question 1

Gene Pool

Answer 1

All of the alleles of an individual in a population

Question 2

What does the Hardy-Weinberg Equilibrium describe?

Answer 2

Describes the relationship between the frequency of alleles at a genetic locus and the genotypes resulting from those alleles

Question 3

What is the Hardy-Weinberg Equation?

Answer 3

p^2 + 2pq + q^2 = 1
p^2 = AA
2pq = Aa
q^2 = aa

Question 4

What are the assumptions that come with the Hardy-Weinberg Equilibrium?

Answer 4

• No natural selection
• Large population
• No De novo mutations
• Random mating
• No migration

Question 5

The Hardy Weinberg Equilibrium equation is used to determine ____

Answer 5

The genotype frequencies in a population

Question 6

Sally is a CF carrier. How is her genotype represented in the Hardy-Weinberg equation?

Answer 6

2pq

Question 7

Which genotype of an autosomal recessive condition is easiest to identify in a population?

Answer 7

q squared or aa

Question 8

What is the impact of natural selection on the gene pool?

Answer 8

Selects for genes with the best reproductive fitness

Question 9

How do small populations influence the gene pool?

Answer 9

There are a limited number of genotypes in the gene pool

Question 10

Which of the following is an example of genetic drift?

Answer 10

Only a small portion of individuals in a small population choose to reproduce

Question 11

De Novo Mutations prevent ____

Answer 11

The extinction of certain mutations in a population

Question 12

One result of assortative mating could be _____

Answer 12

An increase in certain genotypes in a population

Question 13

A founder effect mutation may be caused by _____

Answer 13

A genetic “bottleneck” that leads to a new, larger population