Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
External reference — all senses of the word “base pair” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.
A base pair is a specific, complementary combination of two nucleotides (adenine-thymine and guanine-cytosine) that form the fundamental unit of DNA, stabilized by hydrogen bonds and essential for the transmission of genetic information.