What is complementary base pairing?
Complementary base pairing is something seen in DNA and RNA molecules. This refers to which bases can form hydrogen bonds with each other when paired with a second strand of DNA or RNA. Adenosine can only form hydrogen bonds with thymine and cytosine can only form hydrogen bonds with guanine. In RNA, uracil is used instead of thymine. You can find more information here: http://www.elmhurst.edu/~chm/vchembook/5…