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Biology, 12.12.2020 16:40 kmsg2000

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.

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