Select Page

Deoxyribonucleic acid


1. A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions.

DNA, which consists of a polysugar-phosphate backbone possessing projections of Purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). (

2. A double-stranded nucleic acid that contains the genetic information for cell growth, division, and function. (

3. A nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms (with the exception of RNA viruses). (

Also known as DNA.

Related entries

Struggling in Biology?

Are You Premed?

Confused about the MCAT? Not sure how to prepare? This guide will show you how