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 ?
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.
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.
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.
We're trying to figure out at the DNA level what it means to be a dog," she says.
But the action hasn't stopped the state from distributing DNA collection kits or the police from taking samples.
When the researchers heated and cooled their DNA strands in a Lest tube, each one folded in on itself and snapped into a virus-size structure, 22 nanometers in diameter.
Parr says there are two types of DNA in a cell: the nuclear DNA and the mitochondrial (mtDNA).
Mitochondrial DNA differs from nuclear DNA in its location, its quantity in the cell, its mode of inheritance, and its sequence.
The profiles are based on DNA samples collected from people who have been convicted of murder, manslaughter, rape, or aggravated assault.
This introductory textbook presents a well-balanced incorporation of the basic concepts, applicable clinical examples, advances in molecular biology and their impact on medicine, and gaps that will be filled by further developments in DNA biology and medicine.
In the strategy pursued by Kirkness' team, biologists isolate copies of an animal's genome and break the strands of DNA into millions of short fragments.
The movement began about eight years ago when Leonard Adleman, a computer scientist at the University of Southern California, introduced the idea of using DNA to solve complex mathematical problems.