DNA

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Related to DNA double helix: DNA replication

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 ?
Destabilization of the DNA double helix in cancer--Mirko Beljanski's theory of carcinogenesis and anti-cancer extracts.
In dividing, the cell unzips the DNA double helix (consisting of two winding strands linked together by matching base pairs) using each strand as a template to direct the formation of its companion strand.
The discovery of the DNA double helix by Francis Crick and James Watson in 1953 confirmed his intuition of a hidden order, encouraging his belief in the transformational power of "nuclear mysticism"--that is, in what he called the vision of matter constantly in the process of dematerialization, of disintegration, thus showing the spirituality of all substance.
Speaking at University College, London, the codiscoverer of the DNA double helix said overweight people are happier--and sexier.
An automatic flour dispenser will be shown feeding a DNA double helix mixer and, for the first time, their PLC recipe controller, which provides proportional weighing of flour and tempered water, will be on view, alongside the Mindos system for automated ingredient feed, and their new generation of high pressure glaze sprayers.
He used Watson and Crick's DNA double helix as a model for advertising.
These revolutions are interconnected, as Kaku notes; discovery of the DNA double helix, for example, relied on X-ray crystallography, a technique derived from quantum physics.
What is emerging from this effort is a conception of the mind so foreign to common notions, so at odds with the view of the average person, that this idea has been called "the astonishing hypothesis" by Nobel laureate Francis Grick, co-discoverer of the DNA double helix.
The logical way to do this was by the study of X-ray diffraction patterns, but the patterns obtained, while sufficient to be useful in working out the structure of small molecules such as vitamin B-12 or simple chains such as the DNA double helix (see 1953), were not helpful in working out the intricacies of the protein molecule.
today announced its Grand Opening, which coincides with National DNA Day, the anniversary of the publication of the DNA double helix structure in April 1953.
The dynamic nature of the DNA double helix that maintains the stability of the genome forms the basis of the research.
Objective: The bases that make up the DNA double helix absorb ultraviolet light.