If the Hypothesis That Protocells Were Based on an "RNA

question 33

Multiple Choice

If the hypothesis that protocells were based on an "RNA world" is correct,what would be necessary to shift to a "DNA world"?

• A)an enzyme or reaction capable of removing one oxygen from ribose in nucleotides
• B)enzymes for reverse transcription of RNA into DNA
• C)new enzymes to replicate the DNA
• D)new enzymes for transcribing DNA back to RNA
• E)All would be necessary to switch to a "DNA world."

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