Question

Accuracy in the translation of mRNA into the sequence of amino acids in a polypeptide depends on specificity in which of the following?

1) binding of ribosomes to mRNA 2) shape of the A and P sites of ribosomes 3) attachment of amino acids to tRNAs 4) bonding of the anticodon the codon and the attachment of amino acids to tRNAs

Answer 1

The accuracy of protein synthesis during translation relies on the attachment of the correct amino acids to tRNAs and the proper pairing of tRNA anticodons with mRNA codons.

Step-by-step explanation:

Accuracy in the translation of mRNA into the sequence of amino acids in a polypeptide depends specifically on the attachment of amino acids to tRNAs and the subsequent bonding of the anticodon to the codon. During the process of translation, the ribosome facilitates the correct matching of tRNA anticodons with mRNA codons. Each tRNA has an anticodon that is complementary to an mRNA codon, and it carries a corresponding amino acid.

When the tRNA anticodon base pairs correctly with the mRNA codon, the ribosome catalyzes the formation of a peptide bond between the present amino acid and the growing polypeptide chain. This precise anticodon-codon interaction ensures the correct sequence of amino acids in the resulting protein.

Answer 2

Answer: Option A

Step-by-step explanation:

The accuracy in the translation of the mRNA into the sequence of amino acids depends on the binding of the ribosomes to the mRNA.

During the time of translation, the ribosomal sub units assembles like sandwich on the strand of the mRNA.

These unit then attracts the tRNA molecule to tie to amino acids. A long chain of the amino acids performs the function of decoding the mRNA into protein or polypeptide.