The Hot Zone

Why do scientists think that RNA may have appeared on the earth before DNA?

Uhmm help?

Asked by
Last updated by Aslan
Answers 1
Add Yours

Today, many scientists believe that RNA evolved on the Earth long before DNA did. Researchers hypothesize—obviously, no one was around to write this down—that RNA was a major participant in the chemical reactions that ultimately spawned the first signs of life on the planet. Check this out,