Question

Why can the reduction in melting temperature for hybrid DNA between two mammalian species be used to predict how long it has been since those species diverged from a common ancestor? A., Mutations in DNA accumulate at a fairly constant rate. B., Closer relatives have fewer DNA base pair mismatches. C., Closer relatives are less likely to be reproductively isolated.

Answer 1

A

Step-by-step explanation:

Due to mutations in DNA that accumulate at a fairly constant rate , the reduction in melting temperature for hybrid DNA between two mammalian species, it is used to predict how long those species have been since divergence.

Hence option A is correct.