Dictionary
DNA
noun \ˌdē-ˌen-ˈā\
: a substance that carries genetic information in the cells of plants and animals
Full Definition of DNA
: any of various nucleic acids that are usually the molecular basis of heredity, are constructed of a double helix held together by hydrogen bonds between purine and pyrimidine bases which project inward from two chains containing alternate links of deoxyribose and phosphate, and that in eukaryotes are localized chiefly in cell nuclei — compare recombinant dna
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Origin of DNA
deoxyribonucleic acid
First Known Use: 1944
Other Genetics Terms
Rhymes with DNA
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DNA Defined for Kids
DNA
noun \ˌdē-ˌen-ˈā\
Definition of DNA for Kids
: a large organic molecule that carries genetic information in the chromosomes and resembles a twisted ladder
Medical Dictionary
DNA
noun \ˌdē-ˌen-ˈā\
Medical Definition of DNA
: any of various nucleic acids that are usually the molecular basis of heredity, are constructed of a double helix held together by hydrogen bonds between purine and pyrimidine bases which project inward from two chains containing alternate links of deoxyribose and phosphate, and that in eukaryotes are localized chiefly in cell nuclei—called also deoxyribonucleic acid; see recombinant dna
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