natalie1605 natalie1605
  • 04-02-2020
  • Biology
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If a DNA strand has 63 nucleotides, how many codons are in the sequence?

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coge4eva
coge4eva coge4eva
  • 12-02-2020

Answer: The number of codons in the sequence is 21.

Explanation: A codon is a triplet of nucleotide which codes for a specific amino acid. Each amino acid has at least one codon that codes for it. Three nucleotide residues is required to form a codon and to code an amino acid. Since there are 63 nucleotides in the sequence, the number of codons present in the sequence is 63 divided by 3. 63/3 = 21

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