Choose the correct answers from the alternatives given :
The bonds between the anticodon of a tRNA molecule and the complementary codon of mRNA are:

catalyzed by aminoacyl tRNA synthetase

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hydrogen bonds that form while the codon is in the A site

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formed by the input of energy from ATP

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catalyzed by peptidyl transferase

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Solution

The correct option is B hydrogen bonds that form while the codon is in the A site
The bonds between the anticodon of a tRNA molecule and the complementary codon of mRNA are hydrogen bonds that formed while the codon is in the A site. This so happens in the ribosomal unit when a tRNA approaches the mRNA for bonding. The nitrogenous bases present in codon and anticodon bond together by hydrogen bonds.
So, the correct option is 'hydrogen bonds that form while the codon is in the A site'.

Suggest Corrections

	List I		List II
A	Chloramphenicol	p	Inhibits binding of aminoacyl tRNA to ribosome
B	Erythromycin	q	Inhibits interaction between tRNA and mRNA
C	Neomycin	r	Inhibits initiation of translation
D	Streptomycin	s	Inhibits peptidyl transferase activity
E	Tetracycline	t	Inhibits translocation of mRNA along ribosomes