DNAemäspari

DNAemäspari refers to the pairing of nucleotide bases within a DNA molecule. Deoxyribonucleic acid (DNA) is a double-stranded helix composed of repeating units called nucleotides. Each nucleotide consists of a sugar molecule, a phosphate group, and one of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and thymine (T).

The specific arrangement of these bases determines the genetic code. The pairing rules, known as Chargaff's rules, dictate that adenine always pairs with thymine (A-T) and guanine always pairs with cytosine (G-C). These pairings are stabilized by hydrogen bonds, with A-T pairs forming two hydrogen bonds and G-C pairs forming three hydrogen bonds. This specific base pairing is crucial for DNA replication and transcription, ensuring that genetic information is accurately copied and passed on. The complementary nature of the base pairing means that if the sequence of one strand is known, the sequence of the other strand can be easily determined.