Imagine that a researcher was able to travel back in time, shortly after the appearance of the first RNAs on Earth. What would she find?
A)functional ribosomes that behave similarly to those found today
B)proteins with complex primary, secondary, and tertiary structures
C)precursors of tRNAs bound to nucleotides, and not amino acids
D)precursors of tRNAs bound only to specific amino acids, such as glycine
E)multiple polycistronic mRNAs, which could be translated to generate several proteins

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The Answer of Imagine that a researcher was able to travel back in time, shortly after the appearance of the first RNAs on Earth. What would she find?
A)functional ribosomes that behave similarly to those found today
B)proteins with complex primary, secondary, and tertiary structures
C)precursors of tRNAs bound to nucleotides, and not amino acids
D)precursors of tRNAs bound only to specific amino acids, such as glycine
E)multiple polycistronic mRNAs, which could be translated to generate several proteins

Imagine That a Researcher Was Able to Travel Back in Time