Multiple choice

A codon is made up of

  1. single nucleotide

  2. two nucleotides

  3. three nucleotides

  4. four nucleotides

  5. -
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. DNA and RNA molecules are written in a language of four nucleotides.

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