Question

PLEASE HELP GUYS!!Scientists think an "RNA world" existed on Earth long before DNA evolved.

Why do scientists think that RNA is a likely candidate to have been the first
genetic material?
O A. Some RNA can catalyze reactions.
OB. RNA is less complex than DNA.
OC. The Miller-Urey experiment yielded RNA but no DNA.
OD. Fossilized organisms containing RNA predate those containing
DNA.

Answer 1

Its B

Step-by-step explanation:

Answer 2

(D)

Step-by-step explanation:

RNA has great capability as a genetic molecule; it once had to carry on hereditary processes on its own. It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene.