Question

predict the consequences of an aminoacyl - trna synthetase attaching the wrong amino acid to a trna molecule.
○ polysome formation would be prevented, and many polypeptide assembly would be much less efficient.
○ the polypeptide would not be different from the one specified by the mrna codons.
○ initiation of translation would be prevented, and no polypeptide would be assembled.
○ the polypeptide chain would be terminated prematurely.
○ the wrong amino acid would be substituted for the one specified by the codon.

Explanation:

Aminoacyl-tRNA synthetases correctly attach amino acids to their corresponding tRNAs. If this enzyme attaches the wrong amino acid to a tRNA, the tRNA will carry the incorrect amino acid to the ribosome during translation. The ribosome reads the mRNA codon and accepts the tRNA based on its anticodon, not the amino acid it carries, leading to the wrong amino acid being incorporated into the polypeptide chain.

Answer:

The wrong amino acid would be substituted for the one specified by the codon.