tRNA anticodons complement mRNA codons from DNA triplets

Steps:

• Replace T with U in each DNA triplet from the table to obtain mRNA codons for glycine, leucine, lysine, valine.
• Form each anticodon by base-pair complement (A↔U, G↔C) of the mRNA codon, keeping sequence order.
• Sequence anticodons in polypeptide order: Gly-Leu-Lys-Val.
• Compare to options; B matches CCG-UUA-UUU-CAA.

Why B is correct:

• B lists the base-by-base RNA complements of the mRNA codons transcribed from the table's DNA triplets, enabling tRNA binding during translation.

Why the others are wrong:

• A: Uses GAA for leucine anticodon, but table's leucine DNA yields UUA complement.
• C: Lists mRNA codon sequences (with T→U), not their complements.
• D: Uses CUU for leucine and UUA for lysine, mismatching table complements.

Final answer: B