Question

structures of the cell quick check
if the sequence of bases on the mrna codon is auu, what would be the sequence of bases on
the opposite strand assembled by the trna? (1 point)

○ uua

○ att

○ taa

○ uaa

Explanation:

To determine the tRNA anticodon sequence, we use the base - pairing rules in RNA. In RNA, adenine (A) pairs with uracil (U), and uracil (U) pairs with adenine (A). The mRNA codon is AUU. So, for the first base A in the mRNA codon, the corresponding base in the tRNA anticodon is U. For the second base U in the mRNA codon, the corresponding base in the tRNA anticodon is A. For the third base U in the mRNA codon, the corresponding base in the tRNA anticodon is A. So the tRNA anticodon sequence is UAA.

Answer:

D. UAA (assuming the options are labeled A: UUA, B: ATT, C: TAA, D: UAA)