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

Question

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) Statement I is incorrect but Statement II is true (2) Both Statement I and Statement II are true (3) Both Statement I and Statement II are false (4) Statement I is correct but Statement II is false

Doubtly · Accepted Answer

(1) Statement I is incorrect but Statement II is true

Biology Tutor AI · Answer

Answer: (1) Statement I is incorrect but Statement II is true Statement I is incorrect: AUG codes only for methionine; it also acts as the initiator (start) codon. The genetic code is unambiguous and specific: one codon codes for only one amino acid. Phenylalanine is coded by UUU and UUC. Statement II is true: both AAA and AAG code for lysine. This shows the code is degenerate: some amino acids are coded by more than one codon.

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

2 answers

Your answer