Ch. 20 - Population Genetics

A group of individuals that occupy the same habitat and can interbreed with each other form a–

• Species

• Community

• Gene Pool

• Population

• Genome

Which of the following is NOT an assumption of the Hardy-Weinberg equilibrium?

• Very large population size

• Random mating

• Mutations are present

• No gene flow

The merging of 2 formally separated populations would be an example of—

• Mutation

• Natural selection

• Bottleneck

• Gene flow

• Random mating

The founder effect would go against which condition of Hardy-Weinberg Equilibrium?

• No mutation

• No gene flow

• Random Mating

• No selection

• Large population size

If a population is drastically reduced in size and rebounds what has occurred?

• Bottleneck

• Random mating

• Mutation

• Gene flow

What is fitness?

• Rate of survival of a species

• Measure of reproductive success

• Measure of an animal's top speed

• Measure of the overall size of an individual

For natural selection to result in evolutionary change,

• Variation must exist in a population

• Variation must be inherited from one generation to the next

• Reproductive success of different phenotypes must differ

• All of the choices are correct

What mechanism of evolution occurs when allele frequencies change over generations due to random chance?

• Genetic drift

• Natural selection

• Mutation

• Gene flow

The display feathers of a peacock are an example of—

• Gene flow

• Mutation

• Genetic drift

• Sexual selection

Descent with modification refers to—

• Natural selection

• Evolution

• Artificial selection

• Allele equilibrium