The RNA molecules of an RNA world on early Earth may have been composed of bases other than A, U, G, and C

because ____.



a. DNA does not use all four bases
b. these nucleotides will not form a double helix
c. these nucleotides cannot be created in a Miller-Urey like experiment
d. G is somewhat unstable in water
e. C is somewhat unstable in water


ANSWER: e

Biology & Microbiology

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b. chromatins
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