The first molecules of RNA were probably made
A) on the surfaces of clays or other minerals
B) deep within the earth
C) in the atmosphere
D) in space and then transported to the Earth in meteorites

Question

Quizplus · Accepted Answer

The most widely accepted hypothesis is that RNA molecules were first made on the surfaces of clay or other mineral particles. These minerals may have served as templates for the synthesis of RNA, providing a stable surface for the joining of nucleotides and protecting the newly-formed RNA molecules from degradation. Evidence supporting this hypothesis includes experiments showing that clay and other minerals can catalyze the formation of RNA and other biomolecules.

The First Molecules of RNA Were Probably Made