Question

The codons used in chain termination are ______.

विकल्प

• UAG, UAA, AUG

• GAT, AAT, AGT

• AGT, TAG, UGA

• UAA, UAG, UGA

Answer 1

The codons used in chain termination are UAA, UAG, and UGA.

Explanation:

These three codons are known as stop codons or nonsense codons. During translation (protein synthesis), they signal the termination of the polypeptide chain. Unlike the other 61 codons in the genetic code, these three do not code for any amino acid; instead, they are recognised by release factors that trigger the ribosome to release the newly formed protein.