DNA

Definition

DNA (Deoxyribonucleic Acid) is a molecule that carries most of the genetic instructions used in development, functioning and reproduction of all known living organisms.

Related terms

Chromosome: A long thread-like structure composed primarily of protein and DNA that carries genetic information.

Gene: A segment on the chromosome containing instructions for making specific proteins or sets of proteins.

Double Helix:

The shape that two linear strands of DNA assume when bonded together - similar to a twisted ladder or spiral staircase.