Genetic information is encoded in DNA, and all the critical ...

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Genetic information is encoded in DNA, and all the critical work of the cell is done by proteins, from which enzymes are made. By 1966, several researchers began to think about how such a code could have evolved. It seemed like a chicken-and-egg problem: you can’t make enzymes without DNA instructions, and you can’t read those instructions without polymerase enzymes. Which came first? Several people, including Francis Crick, suggested that RNA, which, like DNA, can store genetic information, might also be able to act like an enzyme.

The writer is considering revising the underlined portion of the sentence to the following.

made—including a class of enzymes called polymerases, which read off the DNA.

Should the writer make this revision?

Options

A

Yes, because it articulates the main idea of the passage.

B

Yes, because it introduces a detail that is further developed in the paragraph.

C

No, because it contains an irrelevant technicality that blurs the focus of the paragraph.

D

No, because it diverges from the passage's emphasis on genetic material.

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