Evolution Unit Review Flashcardziz

Front

What is a gene pool?

Back

The total genetic information found in a population.

Front

What is an analogous structure?

Back

Structures that serve similar functions but do not share a common ancestor.

Front

What are homologous structures?

Back

Structures that are inherited from a common ancestor.

Front

What does it mean if an organism has a vestigial structure?

Back

It likely had a function in an early ancestor.

Front

What is non-random mating?

Back

A mating pattern where individuals select partners based on specific traits.

Front

Define genetic drift.

Back

A change in the frequency of a gene variant in a population due to random sampling.

Front

What is evolution?

Back

The change in the heritable characteristics of biological populations over successive generations.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function in a species.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestor; analogous structures do not.

Front

What is gene flow?

Back

The transfer of genetic variation from one population to another.