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 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.
References in periodicals archive ?
DNA 16, Gallup--Frankie Spolar, fapolar@ rmchcs.org.
The scientists sorted the genetic material into appropriate chromosome locations by matching each fragment to similar sequences in human DNA.
Bruce Jackson, Ph.D., might not necessarily agree with the quick move to the for-profit arena in which DNA research is heading, but the geneticist at the University of Massachusetts Lowell remains cautiously optimistic about what the research can do.
MethylScope(r) technology is the only platform capable of detecting inappropriate DNA methylation for all human genes on a single array, providing a fast, cost-effective, and comprehensive biomarker discovery tool.
The solution of the structure of DNA by Watson and Crick in the 1950s (Watson and Crick 1953) immediately suggested a mechanism--semi-conservative replication--by which the genetic material could be faithfully transmitted from one generation to the next.
"We're trying to figure out at the DNA level what it means to be a dog," she says.
The findings should be weighed cautiously, some scientists warn, because looking only at mitochondrial DNA can be misleading.
Screening for Bartonella species DNA was conducted by using conventional PCR and real-time PCR directly with EDTA-anticoagulated blood and from the 7-day postenrichment BAPGM blood culture samples.
As Merial continues to move DNA technology forward by working with scientists to develop tests for economically important traits, producers and consumers may ponder what this will mean for them.
All outcomes were measured by standard microbiologic techniques, and all failures were confirmed by DNA fingerprinting.
Through blood work, scientists will also obtain information on another form of DNA called the mitochondrial DNA (mtDNA).
Currently, some DNA sequences can at best be patented by companies who have spent heavily to determine their order, while other such sequences are not eligible for protection at all.