Module 10: Population Genetics Flashcards
Gene Pool
All of the alleles of an individual in a population
What does the Hardy-Weinberg Equilibrium describe?
Describes the relationship between the frequency of alleles at a genetic locus and the genotypes resulting from those alleles
What is the Hardy-Weinberg Equation?
p^2 + 2pq + q^2 = 1
p^2 = AA
2pq = Aa
q^2 = aa
What are the assumptions that come with the Hardy-Weinberg Equilibrium?
- No natural selection
- Large population
- No De novo mutations
- Random mating
- No migration
The Hardy Weinberg Equilibrium equation is used to determine ____
The genotype frequencies in a population
Sally is a CF carrier. How is her genotype represented in the Hardy-Weinberg equation?
2pq
Which genotype of an autosomal recessive condition is easiest to identify in a population?
q squared or aa
What is the impact of natural selection on the gene pool?
Selects for genes with the best reproductive fitness
How do small populations influence the gene pool?
There are a limited number of genotypes in the gene pool
Which of the following is an example of genetic drift?
Only a small portion of individuals in a small population choose to reproduce
De Novo Mutations prevent ____
The extinction of certain mutations in a population
One result of assortative mating could be _____
An increase in certain genotypes in a population
A founder effect mutation may be caused by _____
A genetic “bottleneck” that leads to a new, larger population
