Comparison of gene sequences among species has revealed:

Question

Quizplus · Accepted Answer

The more similar the gene sequences, the more recently two species shared a common ancestor due to the fact that mutations accumulate over time, so two species that have accumulated fewer mutations since diverging from a common ancestor will have more similar gene sequences. Therefore, option B is correct. Option A may or may not be true depending on which genes are being compared. Option C is false because greater differences in gene sequences indicate that more time has passed since the species shared a common ancestor. Option D is false because humans are more closely related to pigs than to snakes based on overall genetic similarity.

Comparison of Gene Sequences Among Species Has Revealed