Home Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 8 PCB Which of the following is incorrect about th…
Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 8 PCB Single Correct MCQ
Published on: August 13, 2026

Which of the following is incorrect about the features of the genetic code?

A
Out of 64 codons, UAA, UAG, and UGA are stop codons which do not have any tRNA.
B
AUG has dual functions: it codes for Methionine (Met) and also acts as the initiator codon.
C
The code generally varies among organisms.
D
Some amino acids are coded by more than one codon; hence, the code is degenerate.

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The correct answer is:
C

The code is nearly universal: for example, from bacteria to human UUU would code for Phenylalanine (phe). Some exceptions to this rule have been found in mitochondrial codons, and in some protozoans.

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