DNA

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Related to Repetitive DNA: satellite DNA

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 ?
DNA methylation can be measured both in specific genes and in repetitive DNA sequences that are widespread throughout the genome (Bollati et al.
The centromere is functional, but it isn't wrapped in a blanket of repetitive DNA, suggesting the repetitive elements aren't necessary for a centromere to function.
Using this approach, which takes advantage of the lower repetitive DNA in the date palm gene regions, we have increased the publicly available knowledge of the date palm gene by about 1000 fold," he added.
Emanuel, Kurahashi and colleagues have detected other palindromic repetitive DNA sequences at the breakpoints of other translocations, suggesting that these unstable structures may play a broader role in chromosome abnormalities beyond the t(11;22) rearrangement.
Polymerase chain reaction amplification of a repetitive DNA sequence specific for Mycobacterium tuberculosis.
Because this region of chromosome 3 is thought to be caused by recombination between flanking segments of highly repetitive DNA sequences, duplications of 3q29 should occur with the same frequency as deletions.
Finally, we used two repetitive DNA elements, namely, Alu and LINE-1 repeats, to estimate global methylation.
The study found that the late blight genome is two and a half to four times larger than those of its relatives, mainly due to a massive amount of repetitive DNA.
hESCs maintain telomere length by expressing the enzyme telomerase, the catalytic subunit of which, hTERT, adds telomeric repetitive DNA sequences to the chromosome ends.
Repetitive DNA sequences are the source of many gaps in the sequences of other organisms, including the worm Caenorhabditis elegans (SN: 12/12/98, p.
VOLUME 1 I MOLECULAR GENETICS Genetics, Molecular Basis of DNA Replication and Transcription Translation of RNA to Protein Alternatively Spliced Genes Repair and Mutagenesis of DNA Genomic Imprinting, Molecular Genetics of Heterochromatin and Euchromatin-Organization, Packaging II GENOMIC ORGANISATION AND EVOLUTION Gene Distribution in the Human Genome Anthology of Human Repetitive DNA Repetitive sequence and noncoding DNA evolution in Eukaryotes Horizontal Gene Transfer Molecular Systematics and Evolution Genetic Variation and Molecular Evolution III GENOMES OF MODEL ORGANISMS E.
The genes have also been designed to avoid features that are frequently problematic in protein expression such as mRNA secondary structure, repetitive DNA elements and internal translation initiation sites.

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