Population Genetics PreQuiz01

What is the gene pool in a population?

• The total number of genes in a single individual

• The number of dominant alleles within a population

• The total collection of alleles in a population

• The pool of recessive traits only

Which of the following would increase the gene pool diversity in a population?

• Gene flow

• Genetic drift

• Inbreeding

• Genetic bottleneck

When a population has a high level of genetic variation in its gene pool, it is better able to:

• Avoid natural selection

• Survive environmental changes

• Mutate into new species

• Avoid genetic equilibrium

What is meant by allele frequency?

• The ratio of recessive to dominant alleles in an individual

• The proportion of a specific allele in a population

• The number of mutations in a population over time

• The total number of alleles in a species

If the frequency of allele "A" is 0.6 in a population, what is the frequency of allele "a" assuming there are only two alleles at this locus?

• 0.4

• 0.6

• 1.0

• 0.3

Which of the following can cause allele frequencies to change over generations in a population?

• Large population size

• Absence of mutations

• Gene flow and natural selection

• Lack of gene flow

What does it mean if a population is in genetic equilibrium?

• The allele frequencies are constant over time

• There is continuous gene flow

• Mutations frequently occur

• Natural selection actively favors certain alleles

Which of the following is NOT a requirement for a population to maintain genetic equilibrium?

• No mutations

• No gene flow

• Small population size

• Random mating

When a population reaches genetic equilibrium, it implies that:

• Evolution is still occurring

• Allele frequencies fluctuate regularly

• No evolutionary forces are acting on it

• Natural selection is at its peak

Which of the following events would disrupt genetic equilibrium in a population?

• Random mating

• A large mutation rate

• A stable environment

• A large population size