Suppose Researchers Know That Two Species of Fish Began Diverging

Short Answer

Suppose researchers know that two species of fish began diverging from a common ancestor when they were separated by the formation of the Isthmus of Panama 6 million years ago.The genetic divergence between these two species at the hypothetical HYR gene is 3 percent.[Note: The species have a total of 12 million years of evolutionary divergence, 6 million in each lineage.] The rate of evolutionary change at this gene in these species is _______ percent per million years.