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Continuity and Unity of Life
Evolution
Approaches to Studying Evolution — Methods & Examples

Practice problem

Approaches to Studying Evolution — Methods & Examples

By SSarah Morgan

Why is DNA an important approach to studying evolution? Select all correct answers.

Choose all correct answers

Option A: A

Mutation rates can be used to make molecular clocks that determine how long ago two species diverged

Option B: B

Percent difference in DNA between species can determine how closely they are related

Option C: C

DNA is very easily able to be retained in fossils

Option D: D

DNA half lives can be used to determine the age of very old fossils

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