AP Biology: Unit 7 Review (CED)

Front

What is an outgroup in a cladogram?

Back

An outgroup is the organism that is least closely related to the remainder of the organisms in the cladogram.

Front

What effect does the founder's effect have on populations?

Back

The founder's effect results in an increase of differences between populations of the same species due to the absence of gene flow.

Front

What was the earliest genetic material?

Back

RNA was the earliest genetic material.

Front

What is one cause of genetic variation?

Back

Mutations are a primary cause of genetic variation.

Front

Which method is NOT used to date fossils?

Back

DNA sequencing is NOT a method to date fossils.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population.

Front

What is the significance of crossing over in genetics?

Back

Crossing over increases genetic diversity by exchanging genetic material between homologous chromosomes during meiosis.

Front

What is independent assortment?

Back

Independent assortment is the process by which different genes independently separate from one another when reproductive cells develop.

Front

What role do mutations play in evolution?

Back

Mutations introduce new genetic variations, which can lead to evolutionary changes in a population.

Front

What is the purpose of fossil dating?

Back

Fossil dating helps determine the age of fossils and the timeline of evolutionary history.