| nucleotide mapping | Two-dimensional separation and analysis of nucleotides. (12 Dec 1998) |
|---|---|
| nucleotide pair | <molecular biology> Two nitrogenous bases (adenine and thymine or guanine and cytosine) held together by weak bonds. Two strands of DNA are held together in the shape of a double helix by the bonds between base pairs. (09 Oct 1997) |
| nucleotide phosphotransferase | <enzyme> Transfers phosphoric acid from an organic phosphate donor to the 2' or 3' hydroxyls of nucleosides and nucleotides Registry number: EC 2.7.1.- (26 Jun 1999) |
| nucleotide pyrophosphate transferase | <enzyme> Transfers the beta, gamma pyrophosphate group from ATP to 3'-hydroxy group of ribonucleotides, oligonucleotides or trna Registry number: EC 2.7.6.- (26 Jun 1999) |
| nucleotides | The basic building blocks of nucleic acids. They are made up of a nitrogen-containing purine or pyrimidine base linked to a sugar (ribose or deoxyribose) and a phosphate group. (14 Nov 1997) |
| nucleotidyltransferases | <enzyme> A class of enzymes that transfers nucleotidyl residues. Registry number: EC 2.7.7 (12 Dec 1998) |
| nucleotoxin | A toxin acting upon the cell nuclei. (05 Mar 2000) |
| nucleus | The major organelle of eukaryotic cells, in which the chromosomes are separated from the cytoplasm by the nuclear envelope. (18 Nov 1997) |
| nucleus accumbens | The largest neuronal nucleus in the septal region of the diencephalon. (12 Dec 1998) |
| nucleus accumbens septi | The region of fusion between the head of the caudate nucleus and the putamen, covered on the ventral side by the olfactory tubercle. The name ("a nucleus leaning against the septum") refers to a medial, hook-shaped expansion of this anteroventral region of the striatum which curves under the floor of the frontal horn of the lateral ventricle and ascends for some distance into the ventral half of the septal region. (05 Mar 2000) |
| nucleus acusticus | An obsolete term for the combined vestibular and cochlear nuclei. (05 Mar 2000) |
| nucleus alae cinereae | The visceral motor nucleus located in the vagal trigone (ala cinerea) of the floor of the fourth ventricle. It gives rise to the parasympathetic fibres of the vagus nerve innervating the heart muscle and the smooth musculature and glands of the respiratory and intestinal tracts. Synonym: nucleus dorsalis nervi vagi, dorsal motor nucleus of vagus, dorsal nucleus of vagus, dorsal vagal nucleus, nucleus alae cinereae. (05 Mar 2000) |
| nucleus ambiguus | A very slender, longitudinal column of motor neurons in the ventrolateral medulla oblongata; its efferent fibres leave with the vagus and glossopharyngeal nerve and innervate the striated muscle fibres of the pharynx (including the musculus levator veli palatini) and the vocal cord muscles of the larynx. Synonym: ambiguous nucleus. (05 Mar 2000) |
| nucleus amygdalae | Almond-shaped group of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe. The amygdala is part of the limbic system. (12 Dec 1998) |
| nucleus anterodorsalis | nucleus anterodorsalis |
Synonyms : Accumbens, Nucleus
Synonyms : Nudisms
Synonyms : Analysis, Computer-Assisted Numerical, Computer-Assisted Numerical Analysis, Analyses, Computer-Assisted Numerical, Analysis, Computer Assisted Numerical, Computer Assisted Numerical Analysis, Computer-Assisted Numerical Analyses
Synonyms : Coin, Medal
Synonyms :
| nutritional deficiency cataract |
subcapsular opacity observed in patients with anorexia nervosa and in alcoholics.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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|---|---|
| nutritional polyneuropathy |
polyneuropathy due to nutritional deficits, as seen with beriberi, pellagra, alcoholism, malabsorption syndromes, Strachan's syndrome, and other conditions. Cf. anemic p.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| nu. |
The Nu people (Chinese: 怒族; pinyin: n?z? are one of the 56 ethnic groups officially recognized by the People's Republic of China. Their population of 27,000 are divided into the Northern, Central and Southern groups. Their homeland is a country of high mountains and deep ravines crossed by the Lancang, Dulong and Nujiang rivers, and thi area is rich in natural minerals. ...
Ãâó: en.wikipedia.org/wiki/Nu_(People)
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| nucleoli |
In biology, the nucleolus is, strictly speaking, a "suborganelle" of the cell nucleus, which is an organelle. Only plant and animal nuclei have nucleoluses. Most plant and animal cells have one or more nucleoluses although some do not. No membrane separates the nucleolus from the nucleoplasm. The nucleolus are made of protein and ribonucleic acid (RNA) and contains proteins as well as ribosomal RNA. ...
Ãâó: en.wikipedia.org/wiki/Nucleoli
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| nucleophile |
In chemistry, a nucleophile (literally nucleus lover) is a reagent which is attracted to centres of positive charge. A nucleophile participates in a chemical reaction by donating electrons to a species known as an electrophile in order to form a chemical bond. Because nucleophiles donate electrons, they are by definition Lewis bases (see acid-base reaction theories). ...
Ãâó: en.wikipedia.org/wiki/Nucleophile
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| NU | a plate mounted on the front and back of car and bearing the car's registration number |
|---|---|
| NU | an illegal daily lottery |
| NU | the fourth book of the Old Testament |
| NU | an illegal daily lottery |
| NU | an illegal daily lottery |
| NU | an illegal daily lottery |
| NU | any sluggish bottom-dwelling ray of the order Torpediniformes having a rounded body and electric organs on each side of the head capable of emitting strong electric discharges |
| NU | causing numbness or insensitivity |
| NU | in a numb manner |
| NU | partial or total lack of sensation in a part of the body |
| NU | an embroidered rug made from a coarse Indian felt |
| NU | an embroidered rug made from a coarse Indian felt |
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