Uracil pairs with adenine. The pairing of nitrogenous bases is a key feature in DNA and RNA, where uracil is predominantly found in RNA. To determine which nitrogenous base uracil pairs with, you can refer to the base pairing rules. In DNA, adenine always pairs with thymine, and guanine always pairs with cytosine. However, in RNA, uracil replaces thymine, and adenine still pairs with uracil. This complementary base pairing ensures the accurate replication and transcription of genetic information.
