A stop codon
A) codes for the stop amino acid s-methyl-methionine.
B) forms a hairpin loop forcing the ribosome to fall off.
C) codes for no amino acid.
D) enhances the binding of the e-polymerase.
E) codes for the stop amino acid AUG.

Question

A stop codon
A) codes for the stop amino acid s-methyl-methionine.
B) forms a hairpin loop forcing the ribosome to fall off.
C) codes for no amino acid.
D) enhances the binding of the e-polymerase.
E) codes for the stop amino acid AUG.

Quizplus · Accepted Answer

A stop codon is a sequence of three nucleotides (UAA, UAG, or UGA) that signals the end of a protein’s amino acid chain. It does not code for any amino acid. Instead, it signals the ribosome to stop protein synthesis and release the completed protein.

A Stop Codon