DNA

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DNA:

see nucleic acidnucleic acid,
any of a group of organic substances found in the chromosomes of living cells and viruses that play a central role in the storage and replication of hereditary information and in the expression of this information through protein synthesis.
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DNA (deoxyribonucleic acid)

See GENETICS.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000

DNA

(biochemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

DNA

deoxyribonucleic acid; a nucleic acid that is the main constituent of the chromosomes of all organisms (except some viruses). The DNA molecule consists of two polynucleotide chains in the form of a double helix, containing phosphate and the sugar deoxyribose and linked by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. DNA is self-replicating, plays a central role in protein synthesis, and is responsible for the transmission of hereditary characteristics from parents to offspring
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

DNA

(1) See Windows DNA and DNA storage.

(2) (Digital Network Architecture) Introduced in 1978, the DNA was Digital's umbrella term for its enterprise network architecture based on DECnet. See Digital Equipment.
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References in periodicals archive ?
O6-Alkylguanine-DNA alkyltransferase (AGT) is the repair enzyme that removes the promutagenic O6-alkylguanine adducts from duplex DNA in vitro and in vivo.
The AP site enabled unwinding (melting) of the duplex DNA that facilitated the conversion of the G-rich strand to a GQ fold.
Previously, it was observed that 3 has a minimal effect on the secondary structure of duplex DNA [10].
Alternatively, tRNA or tRNA-like structures may be widespread in modern replication because tRNA played a central role in the replication of ancient RNA genomes, a role that was then both conserved and subtly transformed as genomes evolved from single-stranded RNA to duplex DNA. We have proposed that tRNA-like structural motifs first evolved as 3[prime] terminal structures that tagged RNA genomes for replication in the RNA world before the advent of protein synthesis (1).
To determine the effect of SYBR concentration, DNA concentration, and fragment length on duplex DNA melting, we used a polymorphism located in the first exon of the 5-HT2a receptor (HTR2A) gene (102T [right arrow] C; GenBank Accession No.
When voltage is applied to that particular electrode, charge is conducted through the duplex DNA molecule and will have lower impedance, which is measured by the difference in voltage between bound and unbound probe electrodes (25).
Modification of the melting properties of duplex DNA by attachment of a GC rich DNA sequence as determined by denaturing gradient gel electrophoresis.
Taylor, "Hemimethylated duplex DNAs prepared from 5-azacytidine-treated cells," Nucleic Acids Research, vol.
All the naturally occurring double stranded DNAs are negatively supercoiled (including bacterial and viral circular duplex DNAs).