If two organisms have similar rRNA sequences, you can conclude that they
A) mated with each other.
B) will have different G- C ratios.
C) will both ferment lactose.
D) evolved from a common ancestor.
E) live in the same place.

Question

Quizplus · Accepted Answer

Similar rRNA sequences suggest that the two organisms share a common ancestor and have a similar evolutionary history. This is because rRNA sequences evolve slowly over time and are conserved among related species. Therefore, if two organisms have similar rRNA sequences, it is likely that they have a recent common ancestor.

If Two Organisms Have Similar RRNA Sequences, You Can Conclude