Practice!

Sample Problem

The following DNA sequences all run from the 5’ end to the 3’ end is. Please write their complementary RNA strands, also from the 5’ end to the 3’ end.

4.      ACTGCGGACT

5.      TCCATATGGA

6.      AGCCATCACG

Solution

The answers are as follows:

4.      AGUCCGCAGU

5.      UCCAUAUGGA

6.      CGUGAUGGCU

Remember, RNA is synthesized antiparallel to the DNA template (just like the two DNA strands). And don’t forget RNA uses uracil U instead of Thymine T.