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28 February, 09:05

There are 64 codons and 20 amino acids. Which of the following is not true?

A. All amino acids are linked to a codon.

B. Each amino acid is specified by only one codon.

I think it's B

+5
Answers (1)
  1. 28 February, 09:34
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    There are 4 nitrogenous base that group together in a triplet to form a codon. 4 raised to power 3 is 64. There 64 combinations. 1 is start codon that codes for methionine. 3 are stop codons. So an amino acid can be coded by more than one codon. Its B.
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