The molecular clock has been useful to determine the phylogenetic relationships of species based on what assumption?
A)A species lineage accumulates genetic differences over time at a constant rate.
B)Only some species are genetically related.
C)DNA is preserved unchanged over long periods of time.
D)Species adapt at specific rates.

Question

Quizplus · Accepted Answer

The molecular clock assumes that genetic differences accumulate in a consistent, clock-like manner over time, which can help determine the evolutionary relationships among different species. This is the basis for using molecular clock calculations to estimate the divergence times of different lineages.

The Molecular Clock Has Been Useful to Determine the Phylogenetic