Bio:

DNA (Deoxyribonucleic Acid) is the molecule of heredity, carrying genetic information that is passed from parents to offspring. It consists of two long strands of nucleotides, each made up of a sugar, phosphate group, and nitrogenous base (adenine, thymine, cytosine, and guanine). The specific sequence of these bases encodes the instructions for building proteins, which in turn control the functions of cells and the development of an organism. DNA is organized into structures called chromosomes, which are found in the nucleus of eukaryotic cells. During reproduction, DNA is copied and transmitted to the next generation, ensuring the inheritance of traits. This molecular mechanism underpins the continuity of life, with slight variations in DNA sequences leading to genetic diversity.