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.

DNA

(biochemistry)

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

DNA

(1) See Windows DNA.

(2) (Digital Network Architecture) Introduced in 1978, it was Digital's umbrella term for its enterprise network architecture based on DECnet.
References in periodicals archive ?
17,53,82) The evidence suggests that the acquisition of the DMRs, such as insertion events from the CpG rich exogenous DNA sequences and also by cDNA retrotransposition, is a common evolutionary pathway for generating novel imprinted regions, (16,18,19,80,81) and that genomic imprinting originated as the defense mechanism against the insertion of exogenous DNA into the mammalian genome.
Enhancement of transformation rates in higher plants by low dose irradiation: Are DNA repair systems involved in the incorporation of exogenous DNA into plant genome.
133) Heerey J held that the claim to the product of procaryotic or eucaryotic expression of an exogenous DNA sequence was permissibly wide because the DNA sequence for EPO was a principle of general application and, therefore, it was acceptable for the claim to be made in correspondingly general terms.
The mechanism of binding of exogenous DNA to sperm cells: factors controlling the DNA uptake.
Compliance with the new standard means that only products meeting strictest requirements for absence of exogenous DNA are allowed to leave the QIAGEN manufacturing facilities.
Longer fragment exogenous DNA was more difficult in transformation in Chinese cabbage via the pollen-tube pathway.
In all, 13 different individuals were studied and three of them were studied in duplicate for two purposes: comparison of the duplicated results to determine the quality of the procedure and identification of possible contamination with exogenous DNA, based on the fulfillment of the criteria of authenticity.
Today, the most widely used methods for the production of transgenic farm animals are direct microinjection of foreign DNA into the pronuclei of fertilized eggs, nuclear transfer using genetically modified embryonic or somatic donor cells and viral-based constructs as vectors for the introduction of exogenous DNA into embryos.
Sperm Mediated Gene Transfer in Pigs: Effect of Exogenous DNA Presence in Seminal Quality and Evaluation of in vivo Transgenic Embryo Production