Question

What is a codon?

• A. A group of three nucleotide sequences.
• B. The nucleotide units between the start and stop codes.
• C. The nucleotide sequence that serves as the instructions for a protein.
• D. A single nucleotide in an mRNA sequence.
• E. The sequence of nucleotide that signals the start or shop of protein synthesis.

Answer 1

The correct option is A A group of three nucleotide sequences.

A codon is defined as a sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule. These codon translates to form protein sequences.