Chapter 9 Vocab Quiz

A group of interbreeding organisms of the same species living together in a given area.

• population

• gene

• allele frequency

• natural selection

The alleles for every gene present in a population at any one time.

• population

• gene

• allele frequency

• natural selection

The frequency with which a particular gene variant is found in a population.

• population

• gene

• allele frequency

• natural selection

The process by which organisms with favorable variations survive and produce more offspring than less well-adapted organisms.

• population

• gene

• allele frequency

• natural selection

A trait that helps organisms of a particular species to survive & reproduce in their unique environments.

• adaptation

• acquired traits

• genetic drift

• bottleneck effect

A trait that is obtained due to environmental conditions during a life.

• adaptation

• acquired traits

• genetic drift

• bottleneck effect

The process by which changes in allele frequencies occur as a result of random events.

• adaptation

• acquired traits

• genetic drift

• bottleneck effect

A genetic drift as a result of an environmental change that reduces the original population to one that has a drastically different gene pool.

• adaptation

• acquired traits

• genetic drift

• bottleneck effect

A genetic drift as a result of a portion of a population becoming isolated and having a drastically different gene pool from the original population.

• founder effect

• convergent evolution

• divergent evolution

• coevolution