DNAdobbelttråde
DNAdobbelttråde is a term that refers to the double-stranded structure of deoxyribonucleic acid, commonly known as DNA. This structure is fundamental to the way genetic information is stored and replicated in most living organisms. DNA consists of two long strands that wind around each other, forming a helix. These strands are held together by hydrogen bonds between complementary nucleotide bases. Adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C). This complementary base pairing is crucial for DNA replication, as each strand can serve as a template for the synthesis of a new, identical strand. The sequence of these bases along the DNA strands encodes the genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses. The double-stranded nature provides stability and allows for efficient repair mechanisms in case of damage.