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5. During Codon recognition (a) the ribosome moves towards the 3’ end of the mRNA   (b)...

5. During Codon recognition

(a) the ribosome moves towards the 3’ end of the mRNA   (b) a tautomeric shift occurs   (c) a peptide bond forms   (d) anticodon and codon pairing occurs   (e) all of the above

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Answer #1

Answer - During codon recognition only anticodon and codon pairing occured. (Option d)

Explanation -

Ribosomal movement occured just before codon recognition and after suitable amino acid are come closer to the peptide bond.

Peptide bond formation occured after the codon recognition. When mRNA codon finds a suitable complimentary anticodon sequence, then the formation of peptide bond occured between the incoming amino acid bring by tRNA and the amino acid residues of peptide chain.

Taiutomeric shift is the modification of base sequences of RNA strands. It doesnot have any role in codon recognition.

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