Question

A tRNA is chemically modified so that the amino acid bound is different than the one specified by its anticodon. Which codon in the mRNA would the tRNA recognize: the one specified by its anticodon or the one that matches the modified amino acid it carries?

a) Anticodon-specified codon
b) Modified amino acid-specified codon
c) Both equally
d) None of the above

Answer 1

The tRNA recognizes the codon on mRNA that matches the modified amino acid it carries.

Step-by-step explanation:

tRNA recognizes the codon on mRNA that matches the modified amino acid it carries. The anticodon on the tRNA is responsible for base-pairing with the codon on mRNA, ensuring the correct amino acid is added to the growing chain of amino acids. Therefore, the tRNA does not recognize the codon specified by its anticodon, but rather the codon that matches the modified amino acid.