The molecular clock has limited usefulness for estimating divergence times among species because of
A)the saturation of DNA sequences.
B)the variation in substitution rate between lineages and loci.
C)small population sizes.
D)A and B
E)All of the above

Question

Quizplus · Accepted Answer

The molecular clock is limited in estimating divergence times among species due to the saturation of DNA sequences and the variation in substitution rate between lineages and loci. Small population sizes may also affect divergence times, but it is not a direct limitation of the molecular clock. Therefore, choices A and B are correct, and choice C is not directly related to the limitations of the molecular clock.

The Molecular Clock Has Limited Usefulness for Estimating Divergence Times