2
Question
Identify the sense codon from the following.
Identify the sense codon from the following.
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Solution
The correct option is B AUG
- AUG or methionine codon is a sense codon having a dual function. Duality in the codon function is known in the initiation of translation and methionine insertion into internal protein positions.
- When AUG is at the beginning of prokaryotic message (initiation codon), it codes for the incorporation of N- formyl methionine (fMet) whereas AUG within the message code for normal methionine (Met). UGA (opal), UAG(amber) and UAA (ochre) are non-sense codons as they do not specify any amino acid and when present in the reading frame lead to polypeptide chain termination.
Thus, the correct answer is option B.
- AUG or methionine codon is a sense codon having a dual function. Duality in the codon function is known in the initiation of translation and methionine insertion into internal protein positions.
- When AUG is at the beginning of prokaryotic message (initiation codon), it codes for the incorporation of N- formyl methionine (fMet) whereas AUG within the message code for normal methionine (Met). UGA (opal), UAG(amber) and UAA (ochre) are non-sense codons as they do not specify any amino acid and when present in the reading frame lead to polypeptide chain termination.
Thus, the correct answer is option B.
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