Which is not a reason that ribosomal RNA (rRNA)is a useful source of data for studying evolutionary relationships?
A) rRNA undergoes a high degree of lateral transfer.
B) No free-living organism lacks rRNA.
C) rRNA plays a critical role in the translation process in all organisms.
D) rRNA evolves slowly,so it can be analyzed across a wide range of organisms.
E) rRNA is evolutionarily ancient and was present in the common ancestor of all life forms.

Question

Quizplus · Accepted Answer

Option A states that rRNA undergoes a high degree of lateral transfer, which means that it can be horizontally transferred between different lineages of organisms, making it difficult to trace evolutionary relationships accurately. This reduces its usefulness as a source of data for studying evolutionary relationships. The other options all provide valid reasons for why rRNA is a useful source of data.

Which Is Not a Reason That Ribosomal RNA (RRNA)is a Useful