What is the Molecular Clock

Question

What is the molecular clock?
A) The rate at which mutations accumulate in DNA within a species.
B) The rate at which new species diverge from ancestral species.
C) The rate at which structures no longer needed become small and insignificant.
D) The rate at which new discoveries are made about gene homology.

Accepted Answer

The molecular clock is the rate at which mutations accumulate in DNA within a species. It is used as a tool for estimating the timing of evolutionary events and relationships between different species based on the degree of similarity in their DNA sequences.