Final answer:
A tRNA with the anticodon 3'-CGA-5' carries the amino acid arginine, as it pairs with the mRNA codon GCU.
Step-by-step explanation:
The amino acid carried by a transfer RNA (tRNA) with an anticodon sequence of 3'-CGA-5' is arginine. This is determined by looking at the mRNA codon that is complementary to the tRNA anticodon; the mRNA codon for 3'-CGA-5' would be 5'-GCU-3'.
Each tRNA has a specific anticodon that is complementary to an mRNA codon and carries only one type of amino acid. For example, the mRNA codon GCU will bind to the tRNA anticodon CGA, and this particular tRNA will carry the amino acid arginine.