For the DNA sequence 5'-ACG TTA -3', what would be the complementary RNA sequence? (Remember that the DNA template and the mRNA strands are antiparallel.)
A) 5'-TGC AAT-3'
B) 5'-UGC AAU-3'
C) 5'-TAA CGT-3'
D) 5'-UAA CGU-3'

Question

Quizplus · Accepted Answer

To create the complementary RNA sequence, we need to substitute the T's in the DNA sequence with U's. Additionally, we need to reverse the order of the sequence since RNA molecules are synthesized in the 5' to 3' direction. So the complementary RNA sequence would be 5'-UGCAAU-3'. Option D is the only choice that matches this sequence, so it is the correct answer.

For the DNA Sequence 5'-ACG TTA -3', What Would Be