Question

What makes mitochondrial DNA useful as a molecular clock?

Answer 1

The correct answer is D

As compared to nuclear DNA, the mtDNA (mitochondrial DNA) experiences very less mutations. Due to this slow mutation rates, it does not change much over the time. It makes it a good candidate for studying the evolutionary relationship between the species.

In addition, it is mainly inherited from mother’s cytoplasm which also allows the scientists to trace back the maternal ancestral lineage.

Answer 2

Answer:

A large portion of the DNA ring is not vital to structure or function, allowing it to accumulate neutral mutations.

Explanation: