Question Detail
Question
In terms of evolution, which of the following supports the theory that all living organisms share a common ancestor?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The fact that all known life forms use the same genetic code (DNA with the same four bases) and similar machinery for replication, transcription, and translation is strong evidence for common ancestry (universality of the genetic code).
Hint
A shared, fundamental molecule for heredity points to a common origin.