DNA

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”).

The part of a living thing that carries genetic information.

The fundamental nature or values of a person, or an organization or other thing, especially when considered as innate or immutable.

To examine a sample of (someone's) deoxyribonucleic acid.

To place (someone) under a DNA (do not arm) order because of mental illness.

Defense Nuclear Agency, an agency of the United States Department of Defense which existed from 1971 to 1996 and has since been reorganized as the Defense Threat Reduction Agency.

Did not answer.

Did not arrive (used when someone fails to keep an appointment).

Did not attend.

Do not assume.

Does not apply.

Drugs 'n' alcohol.

Do not arm (that is, do not provide with a firearm).