Hint: DNA was first discovered in 1869 by Swiss scientist Friedrich Miescher, who isolated it from white blood cells.

DNA stands for Deoxyribonucleic Acid, which is the molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all living organisms.

DNA is composed of two long strands that form a double helix, held together by complementary base pairs (adenine with thymine, and cytosine with guanine).

These base pairs create the genetic code that determines traits and is passed from parents to offspring. DNA is found in the nucleus of most cells and plays a crucial role in heredity, making it one of the foundational components of life.