The codons that signal the end of a polypeptide chain are called?

The codons that signal the end of a polypeptide chain are called the terminators.

Explanation:

The codons that signal the end of a polypeptide chain are called the terminators.

A codon is a series of 3 DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) nucleotides which corresponds to a particular amino acid or just stop the signals which are sent during the protein synthesis.

The terminators are the codons (also called termination codons) which signal the end of the polypeptide chain during the process of translation.