NEET 2008 · Class 12

Molecular Basis of Inheritance

55. Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?

  1. (A)AUG, ACG - Start/methionine
  2. (B)UUA, UCA - Leucine
  3. (C)GUU, GCU - Alanine
  4. (D)UAG, UGA - Stop

The NCERT line that answers it

Verbatim line

UAA, UAG, UGA are stop terminator codons.

Chapter
Molecular Basis of Inheritance
Section
5.6 GENETIC CODE
Page
17
Words matched
7 of 7

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'UAA, UAG, UGA are stop terminator codons,' which directly matches option D (UAG, UGA - Stop) and distinguishes it from the incorrect options.

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Question text is reproduced from the published NEET 2008 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.