17.1 Do now: Population Genetics

Why would one allele appear more frequently than another in a population?

• It was randomly chosen

• it was more beneficial

• it was more harmful

• what's an allele???

If the frequency of an allele changes from one generation to the next, we can say that the population in question is

• heterozygous

• not changing

• evolving

• polygenic

The primary source of new alleles in a population are due to

• polygenics

• eugenics

• mitochondria

• mutations

What is the impact of sexual reproduction on populations?

• it can increase variation

• it can decrease variation

• it makes the population more adaptable

• it makes the population less adaptable

Why is sexual reproduction a good source of genetic variation?

• offspring receive alleles from both parents

• crossing over during meiosis

• it produces offspring that all look the same

• none of the above

All of the genes in a population are called

• allele frequency

• allele pool

• gene pool

• gene club

This mechanism of evolution occurs when populations migrate.

• Extinction
• Gene flow
• Genetic drift
• Natural Selection

Which of the following cannot introduce new alleles into a population's gene pool?

• Mutation

• Natural selection

• Gene Flow

• sexual reproduction

Evolutionary fitness is

• change over time

• survival of the fittest

• how well an organism can survive and reproduce in its environment

• the study of past and present distributions of organisms