Question

The bonds between the anticodon of a tRNA molecule and the complementary codon of mRNA are ______.

Options

• catalysed by aminoacyl-tRNA synthetase.

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

• formed by the input of energy from ATP.

• catalysed by peptidyl transferase.

Answer 1

The bonds between the anticodon of a tRNA molecule and the complementary codon of mRNA are hydrogen bonds that form while the codon is in the A site.

Explanation:

During translation, the interaction between a transfer RNA (tRNA) and a messenger RNA (mRNA) is based on complementary base pairing. This pairing occurs through hydrogen bonds, which are relatively weak, temporary attractions that allow the tRNA to stay attached to the mRNA just long enough to deliver its amino acid.