Question

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
A. ATT
B. UAA
C. TAA
D. UUA

Answer 1

To determine the sequence of bases on the tRNA anticodon that would pair with the mRNA codon AUU, we need to find the complementary bases based on RNA base pairing rules.

The mRNA codon is AUU:
- A (adenine) pairs with U (uracil)
- U (uracil) pairs with A (adenine)
- U (uracil) pairs with A (adenine)

So, the complementary anticodon on the tRNA would be UAA (which pairs with the mRNA codon AUU).

Thus, the correct answer is:
**B. UAA**