What ability, which modern eukaryotic cells also possess, did cells in an RNA world probably acquire that explains the existence of DNA?
A) Reverse transcription
B) DNA replication
C) Translation
D) RNA splicing

Question

Quizplus · Accepted Answer

Reverse transcription is the process by which RNA is converted back into DNA. This ability, which is observed in modern eukaryotic cells through the action of reverse transcriptase enzymes, supports the theory of an RNA world where RNA molecules were the first genetic material. The existence of DNA could be explained by the evolution of reverse transcription, allowing RNA information to be stored more stably in DNA form.

What Ability, Which Modern Eukaryotic Cells Also Possess, Did Cells