The abbreviation for deoxyribonucleic acid, which is the genetic material present in the cells of all living organisms.

DNA is the fundamental building block for an individual’s entire genetic makeup.

A person’s DNA is the same in every cell (with a nucleus).

DNA is contained in blood, semen, skin cells, tissue, organs, muscle, brain cells, bone, teeth, hair, saliva, mucus, perspiration, fingernails, urine, feces, etc.