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 ?
The researchers found that bats with the same nuclear DNA signature were clustered into three geographic regions, and that the spatial distribution of these three DNA lineages was strikingly similar to the three genetic groups of the rabies virus.
Percent of Apoptotic Leukocytes, Plasma Nuclear DNA Level, and Mitochondrial DNA Level.
Other concerns involve more technical issues, such as unknowns regarding the interactions of the nuclear DNA and mitochondrial DNA.
Changing the law to allow mitochondrial donation in no way affects the firm ban on altering nuclear DNA or reproductive human cloning, it is claimed.
Its nuclear DNA is then transferred to a fertilised donor egg, containing healthy mitochondria, whose own nuclear DNA has been removed.
An egg from one species, such as a domestic cow, has its nucleus removed and replaced with the nucleus and nuclear DNA of an endangered species, such as the Javan banteng, a type of wild cow found in Southeast Asia.
In either case, the nuclear DNA hails from the mother and father, but the mitochondria and their DNA come from a second woman.
Skeleton Unlike nuclear DNA, found in the hearts of cells, mitochondrial DNA is inherited only from mothers.
In addition, mitochondria contain their own genomes, which code for specific proteins and are expressed in coordination with nuclear DNA to regulate the provision of energy to cells.
Because of this it is less subject to change from recombination than nuclear DNA, which is the product of both parents.
According to the company, the PLEX-ID analyzer is capable of running both mtDNA and nuclear DNA forensics assays in a single, fully automated run.

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