DNA

Definition

DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms. It consists of two long strands twisted into a double helix structure.

Analogy

Imagine DNA as a blueprint for building a house. Just like a blueprint contains detailed instructions on how to construct every aspect of a house, DNA holds the instructions for building and maintaining an organism.

Related terms

Genes: Genes are segments of DNA that contain specific instructions for producing proteins or performing certain functions within an organism.

Chromosomes: Chromosomes are structures made up of condensed DNA molecules that carry genes. They can be found in the nucleus of cells.

Genetic Variation: Genetic variation refers to differences in the genetic makeup between individuals or populations. It contributes to diversity within species and plays a role in evolution.