Final answer:
The letters "DNA" stand for Deoxyribonucleic acid. DNA is a molecule that carries the genetic instructions used in the development, functioning, and reproduction of all known living organisms.
Step-by-step explanation:
The letters "DNA" stand for Deoxyribonucleic acid. DNA is a molecule that carries the genetic instructions used in the development, functioning, and reproduction of all known living organisms. It is made up of two long strands of nucleotides, which contain the genetic code used to build and maintain an organism. DNA is found in the nucleus of cells and plays a crucial role in inheritance and evolution.
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