DNA

Definition

Initialism of deoxyribonucleic acid (“a nucleic acid found in all living things (and some non-living things such as certain viruses) which consists of two polynucleotide chains that coil around each other to form a double helix; encoded in its structure are genetic instructions for development, functioning, growth, and reproduction”).

Etymology

The noun is an initialism of deoxyribonucleic acid. The verb is derived from the noun.

Example Sentences

• "Among the various fractions isolated was one presumed to contain only desoxyribosenucleic acid (DNA). Because of certain speculations on the role of nucleic acids in protein synthesis it was necessary to measure and compare the rate of phosphate entry into DNA with that in other fractions of yeast phosphate."
• "We wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest."
• "As you know, heredity resides in our genes. Our genes are, in turn, composed of complex molecules called DNA. About 10 years ago we learned how to synthesize DNA in the test tube with the use of a certain cellular catalyst or enzyme. […] During the past year, we have been able to synthesize DNA which has the full genetic activity of natural DNA."