Which amino acid would most likely be attached to a trna with the anti-codon 5'-uga-3'?
a. gin
b. leu
c. ser
d. none of the above

None of the above.

Explanation:

t RNA (transfer RNA) contains the anticodon that are complimentary to the codon of the mRNA molecule. These codons codes for the particular amino acid by the process of translation.

The tRNA contains the anti-codon UGA. The UGA anti-codon is a stop codon and does not code for any amino acid. The UGA codon acts as the signal for the termination of the translation process.

Thus, the correct answer is option (d).