Q. Assertion: UGA, UAA and UAG are stop codons. Reason: Stop codons lead to the formation of defective polypeptide.
A) Both assertion and reason are true and reason is the correct explanation of assertion.
B) Both assertion and reason are true but reason is not correct explanation of assertion.
C) Assertion is true, but reason is false.
D) Both assertion and reason are false.
Explanation
Stop codons do not code for any amino acid and therefore, when they are encountered during translation, protein synthesis stops and do not proceed further.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.