In RNA, the bases that bind together are adenine (A) and uracil (U), as well as cytosine (C) and guanine (G). This pairing is similar to the base pairing in DNA, where adenine pairs with thymine (T) instead of uracil.
Adenine forms hydrogen bonds with uracil, creating a stable interaction that is essential for RNA structure and function. Cytosine and guanine pair through three hydrogen bonds, providing additional stability to the RNA molecule. The specific pairing of these bases is crucial for processes like transcription and translation, where the RNA carries genetic information from DNA and helps synthesize proteins.