GRE Subject Test: Biology › Understanding Phylogenetics
Phylogenetics relates organisms to one another based on genetic distance that increases with evolutionary time. This principle requires the use of what kind of genes in order to give accurate relationships?
A scientist studies three populations of frog (populations A, B, and C) that live in the same rainforest. He notices some interesting similarities between the three groups. What would be the best evidence that A and B have a more recent common ancestor than A and C or B and C?