Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of sequence homology?
A) Dogs and wolves have very similar morphologies.
B) Dogs and wolves belong to the same order.
C) Dogs and wolves are both members of the order Carnivora.
D) Dogs and wolves shared a common ancestor very recently.

Question

Quizplus · Accepted Answer

The high degree of sequence homology between the nuclear DNA of wolves and domestic dogs suggests that they shared a common ancestor very recently. As dogs are domesticated from wolves, they have similar genetic information, which can be seen in their genomes. The other options (A, B, and C) do not sufficiently explain the high degree of sequence homology between the two canids.

Which Statement Represents the Best Explanation for the Observation That