Which nitrogenous bases pair together in DNA?

In DNA, nitrogenous bases pair together in a specific manner through hydrogen bonding, which is essential for the structure and stability of the DNA double helix. Adenine pairs with thymine through two hydrogen bonds, which is a fundamental aspect of DNA base pairing. This pairing ensures that the genetic information can be accurately replicated and transmitted during cell division.

The pairing of adenine with thymine facilitates complementary base pairing, contributing to the overall stability and integrity of the DNA molecule. In contrast, guanine pairs with cytosine, forming the other key pair in the DNA molecule. Understanding these pairings is crucial for grasping concepts related to DNA replication, transcription, and the overall function of nucleic acids in biology.