4/29/24 - Lecture 16: Population Genetics I: Darwin Meets Mendel

Question 1

Evolution

Answer 1

Change in the heritable properties of populations over the course of generations

Question 2

Genotype frequency

Answer 2

The proportion of individuals with a genotype in the population

Question 3

Allele frequency

Answer 3

The proportion of an allele across all individuals or potential gametes in the population

Question 3

Predicted genotypes in Hardy-Weinberg equilibrium using frequency of alleles

Answer 3

p^2 + 2pq + q^2 = 1
p: proportion of allele p
q: proportion of allele q

Question 3

Assumptions of Hardy-Weinberg

Answer 3

No mutations
Large (infinite) population
Random mating
No gene flow from other populations
No natural selection

Question 4

What if Hardy-Weinberg conditions are not occurring?

Answer 4

Some evolutionary process is happening, and the predicted genotype frequencies of the resulting population are DIFFERENT from the parent population

Question 5

What if Hardy-Weinberg conditions are occurring?

Answer 5

The predicted genotype frequencies of the resulting population are the SAME as the parent population