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 ?
Thereby, several clones could be isolated from the bone sample containing bacterial DNA.
To verify the universal nature of primer u3 and ru8 for any bacterial DNA, several common bacterial species (E.
The AHLs bind to protein receptors, which interact with bacterial DNA and help to turn on genes inside all the bacteria throughout the quorum.
Some critics, however, point out that even these lytic phages, which use bacterial DNA simply to make copies of themselves, can take on random pieces of the bacteria genome.
The 1st approach targets species-specific genes for amplification (2), and the 2nd uses broad-range PCR amplification of conserved bacterial DNA sequences, such as the 168 rRNA, 238 rRNA, and 168-238 rRNA interspace regions (3-5).
The problem is worse when bacterial DNA is amplified by using highly conserved primers.
In another instance, gamma irradiation generates free radicals that break bacterial DNA strands.
Hybridon's immunomodulatory oligonucleotide technology comprises a portfolio of compounds that mimic bacterial DNA that activate the human immune system to fight diseases.
Bacterial DNA has been identified in culture-negative middle ear effusions in the past.
Still, recovering bacterial DNA from human remains dating back hundreds or thousands of years isn't easy.
2) The genes are inserted into plasmids, small rings of bacterial DNA, a double-stranded molecule that contains genes.
Guilfoyle and Li splice the genes they are experimenting with into the bacterial DNA, apply the bacteria to a plant, and tissue culture some plant cells after they have been modified by it.