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Topic: Transcription, genetic code, translation, protein biosynthesis· Genetics and Evolution

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.

1. Both Statement I and Statement II are true

2. Both Statement I and Statement II are false

3. Statement I is correct but Statement II is false

4. Statement I is incorrect but Statement II is true

1 answer

Best answer

Answer: 4. Statement I is incorrect but Statement II is true

Statement I is false: AUG codes only for methionine (it is also the start codon). Phenylalanine is coded by UUU and UUC.

Statement II is true: AAA and AAG both code for lysine (genetic code is degenerate).

So I is incorrect and II is true.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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