In Early Experiments, a Polymer of Uracil, UUUUUUUU…, Translated into a Peptide

question 15

Multiple Choice

In early experiments, a polymer of uracil, UUUUUUUU…, translated into a peptide comprising only phenylalanine amino acids. What did this observation demonstrate?

• A) Uracil is not a functional nucleotide.
• B) UUU codes for phenylalanine.
• C) RNA cannot be faithfully translated in vitro.
• D) No other amino acid codon contains uracil.

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