Repetitive DNA sequences usually evolve very quickly. Based on this fact, molecules that have a rapid mutation rate are used to study relationships among
A) very closely related species.
B) all organisms.
C) extinct organisms.
D) duplicated genes.
E) organisms that diverged long ago.

Question

Quizplus · Accepted Answer

Repetitive DNA sequences that evolve quickly are most useful for studying relationships among very closely related species, as there may not be enough genetic variation in more slowly evolving DNA sequences to distinguish between them.

Repetitive DNA Sequences Usually Evolve Very Quickly