Because of some of the problems with explaining how the first RNA organisms originated, an alternative possibility has been proposed in which ____.
A) proteins and RNA evolved simultaneously
B) DNA existed before RNA
C) lipids functioned as enzymes
D) a different form of life existed before the RNA world
E) viruses functioned as carriers for RNA

Question

Quizplus · Accepted Answer

The correct answer is D because it is the only choice that provides an alternative possibility to the origin of RNA organisms.

Because of Some of the Problems with Explaining How the First