Double-stranded DNA

Double-stranded DNA (deoxyribonucleic acid) is a biologically important molecule found in most living organisms that stores genetic information in a sequence of four nucleotide bases. This molecule is made up of two strands of nucleic acid that are intertwined in a helical structure. Each strand is complementary to the other, meaning that the two strands contain complementary base pairs such as adenine (A) on one strand and thymine (T) on the other. This structure allows it to store genetic information and ensures that the molecule can replicate itself. Double-stranded DNA plays an essential role in the functioning of living organisms, as it contains the instructions for growth, development, and reproduction. It is also used in biotechnology, such as in gene therapy and the development of medicines.