Population Genetics

Question 1

Hardy-Weinberg Equilibrium Principle

Answer 1

principle stating that a population’s genetic variation will remain constant from generation to generation if there are no outside factors that disturb it

Question 2

5 Requirements for HWE

Answer 2

1. No mutations
2. Random mating
3. No gene flow (and no drift)
4. Very large population size
5. No natural selection

AKA THE ABSENCE OF ANY EVOLUTION

Question 3

Formulas

Answer 3

p^2 + 2pq + q^2 = 1

p + q = 1

Question 4

Non-evolving population

Answer 4

• provides a baseline to determine whether allele and genotype frequencies have changed in a pop
• describes a hypothetical situation in which allele frequencies DO NOT change from generation to generation

Question 5

Allele Distribution in Gametes

Answer 5

• the distribution of alleles among gametes reflects the distribution of alleles in the population
• gene pool = all alleles in a population

Question 6

The HWE Question

Answer 6

Do the OBSERVED genotype frequencies match the genotype frequencies PREDICTED by HWE

Question 7

What does it mean to be in HWE?

Answer 7

if a population is in HWE, then evolution is not occurring