What does DNA stand for?

DNA stands for deoxyribonucleic acid. It is a complex molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses. DNA consists of two long chains of nucleotides twisted into a double helix and is responsible for passing on traits from one generation to the next. It contains the genetic code that determines an organism’s physical characteristics, such as eye color, hair color, height, and other traits. DNA is found in the nucleus of cells in all living organisms and can also be extracted from other sources such as hair, bones, and saliva for scientific analysis.