Question

Anticodons in tRNA complementary base pair with codons in mRNA within the ribosome. If the mRNA codon in the A site of the ribosome read "UUC," what would the tRNA look like? That is, what would the anticodon on the tRNA be? What amino acid would it carry?

Answer 1

The tRNA with an anticodon of "AAG" would match the mRNA codon "UUC" in the ribosome's A site, and this tRNA would carry the amino acid phenylalanine.

Step-by-step explanation:

If the mRNA codon in the A site of the ribosome reads "UUC", the corresponding tRNA would have the anticodon "AAG". This is because anticodons are complementary to codons, meaning adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G). Therefore, the tRNA with the anticodon "AAG" would bind to the "UUC" codon. This particular tRNA would carry the amino acid phenylalanine, as UUC is a codon for phenylalanine in the genetic code.