A Codon Consists of Which Number of Nucleotides

Question

A codon consists of which number of nucleotides?
A) one
B) two
C) three
D) four

Accepted Answer

A codon consists of three nucleotides that code for a specific amino acid or a stop signal during protein synthesis. The four nucleotides in DNA (adenine, thymine, guanine, and cytosine) can combine in 64 possible codon combinations. Therefore, each amino acid in a protein can be coded for by more than one codon.