Question

During the process of initiation of translation, the correct 1st aminoacyl tRNA (Meti) is put into the P site via:

a. proper base-pairing of it's anti-codon with the AUG codon of the mRNA
b. translocation of the tRNA from the A site to the P site
c. the ability of the initiation ternary complex to enter the P site of the small ribosomal subunit.
d. the activity of the aminoacyl tRNA synthase in association with the ribosome
e. the nature of the 5'UTR of the mRNA

Answer 1

The correct 1st aminoacyl tRNA (Meti) is put into the P site during the initiation of translation via proper base-pairing of its anti-codon with the AUG codon of the mRNA.

Step-by-step explanation:

During the process of initiation of translation, the correct 1st aminoacyl tRNA (Meti) is put into the P site via:

1. proper base-pairing of its anti-codon with the AUG codon of the mRNA

This ensures that the correct amino acid is added to the growing polypeptide chain. The initiation complex recognizes the start codon (AUG) and positions the Met-tRNA in the P site of the ribosome through base pairing between its anti-codon and the codon.