The fact that a nucleic acid is a very complicated molecule suggests that

A. sophisticated enzymes were not present or available to synthesize it.
B. RNA could not have arisen on its own by chance, but required enzymes to guide the synthesis of nucleotides and then nucleic acids.
C. no natural system could ever generate it.
D. the protein-first hypothesis is therefore the only plausible hypothesis.
E. the RNA-first hypothesis is impossible.


Answer: B

Biology & Microbiology

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