AP Biologyeasymcq1 pt

Which codons signal translation termination?

A.UAA, UAG, UGA
B.AUG only
C.UUU, UUC
D.Every codon with a U

Explanation

Core Concept

The three stop codons have no matching tRNA; release factors bind instead and free the polypeptide from the ribosome.

Correct Answer

AUAA, UAG, UGA

More Unit 6: Gene Expression and Regulation practice questions

Try a random question →

Practice more AP Biology questions with full explanations

Practice Unit 6: Gene Expression and Regulation Questions →