WHICH IS /ARE COMPLEMENTARY TO 5' AGGCUAAC 3' 1. 5'TCCGATTG3' 2. 3'TCCGATTC5' 3. 5'CTTAGCCT3' 4.3'TAAGCTTA5' 5. 3'TCCGATTG5' AND 5'GTTAGCCT3'

Answer 1

5 is the correct answer.
Since the strands are anti-parallel, we match the 3' and 5' ends, and vice versa.

5'AGGCUAAC 3'
matches perfectly (A-T and C-G) with
3'TCCGATTG5'

The U in the original strand is probably a typo and should have been a T.

The other option in choice 5 is just the reverse of the same strand.

Answer 2

Correction: The U is present in an RNA strand that matches up with A, so it is not a typo.