DNA was not the first informational molecule in evolving cells. What choice best supports this statement?

A. Ribozymes act as catalysts for diverse reactions.

B. RNA appeared after hundreds of millions of years of prebiotic chemical synthesis.

C. Ribozymes were probably isolated in a vesicle resembling a living cell.

D. DNA can replicate only with the help of enzymes, but the code for enzyme construction is found in the DNA.

E. Self-replicating molecules alone do not constitute life.DNA was not the first informational molecule in evolving cells. What choice best supports this statement?
It's B. The question alludes to the appearance of RNA before DNA. None of the other choices reflect that.DNA was not the first informational molecule in evolving cells. What choice best supports this statement?
D. DNA can replicate only with the help of enzymes, but the code for enzyme construction is found in the DNA.

The chicken-or-egg paradox. As it stands, DNA is prevented from being the first information-storing molecule because there's no way to get the information stored in it: for example, even IF a full-blown human genome of DNA just magically popped into existence, a copy of it couldn't be made, so it would quickly spontaneously degrade and the world would be none the better off for its ever arising. The paradox is solved by positing that, before the DNA/enzyme system existed, RNA both stored genetic information (it still does in many viruses) and catalyzed chemical reactions (catalytic RNAs are called ribozymes): the RNA world.