NEET2021Botany-Genetic Code

NEET 2021 Botany Codon-Amino Acid Mapping Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 12

Statement I: The codon ‘AUG’ codes for methionine and phenylalanine.

Statement II: ‘AAA’ and ‘AAG’ both codons code for the amino acid lysine.

In the light of the above statements, choose the correct answer from the options given below.

A

Both Statement I and Statement II are true

B

Both Statement I and Statement II are false

C

Statement I is correct but Statement II is false

D

Statement I is incorrect but Statement II is true

Correct Answer

Option D

Detailed Explanation

AUG codes only for methionine, not phenylalanine. AAA and AAG both code for lysine, making Statement II true.

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