Question

The mRNA codons 5'-CAA-3' or 5'-CAG-3' are translated as the amino acid glutamine by _____.a) the tRNA with an anticodon 5'-GUU-3' and glutamine at its other endb) by tRNA molecules that have been charged with glutamine by two different aminoacyl-tRNA synthetasesc) separate tRNA molecules with anticodons 3'-GUU-5' and 3'-GUC-5', respectivelyd) the same tRNA with the anticodon 3'-GUU-5'e) the small and large ribosomal units

Answer 1

Answer:

c) separate tRNA molecules with anticodons 3'-GUU-5' and 3'-GUC-5', respectively.

Explanation:

Glutamine would be covalently linked to two different tRNA molecules encoding the 3'-GUU-5' and one containing the 3'-GUC-5'. Only one would be allowed to bind to the P-site of the ribosome at a time.