Population genetics

A gene pool is

• all of the alleles in an individual

• 
  a body of water filled with fish

• all of the alleles in a population

• 
  all of the bases in one strand of DNA

Population genetics is the study of

• DNA bases in mitochondria

• genetic variation in a population

• how organisms compete with each other

• genetic recombination in a laboratory

The fusion of Mendel’s laws of inheritance with Darwin’s evolution was done by

• Charles Darwin and Gregor Mendel

• Ronald Fisher, Sewall Wright, and J.B.S. Haldane

• Thomas Hunt Morgan and Barbara McClintock

• James Watson and Francis Crick

How can allele frequency be calculated in a population?

• By counting the total number of individuals with a dominant trait

• By determining the ratio of dominant to recessive traits

• By examining the physical characteristics of the individuals

• By using gene counting or from genotype frequencies

What does the Hardy-Weinberg principle assume?

• Mating is random, and the population is infinitely large

• Allele frequencies change every generation

• There is constant mutation and migration

• Individuals have unequal probabilities of survival

A random fluctuation in allele frequencies due to chance is

Which formula represents the Hardy-Weinberg equilibrium?

• p + q = 2

• p^2 + 2pq + q^2 = 1

• 2p + q = 1

• p^2 - q^2 = 0

In a population where the frequency of allele A is 0.6, what is the frequency of allele a?

• 0.4

• 0.3

• 0.5

• 0.6

How are you feeling today?

Which of the following describes a genotype frequency?

• The total number of alleles in a population

• The proportion of individuals with a specific genotype

• The ratio of dominant to recessive alleles

• The ratio of dominant to recessive alleles