What base pairs with Adenine in DNA?

In DNA, adenine pairs specifically with thymine through hydrogen bonds. This pairing is a fundamental aspect of the DNA structure, which consists of two strands forming a double helix. The base pairing rules, known as Chargaff's rules, state that adenine (A) always pairs with thymine (T) and cytosine (C) always pairs with guanine (G). This complementary base pairing is crucial for the processes of DNA replication and transcription because it ensures that genetic information is accurately copied and transmitted. Thymine is unique to DNA, while uracil is found in RNA, further distinguishing the nucleic acid types in terms of structure and function.