| AGE | acrylamide gel; acute gastroenteritis; advanced glycation end product; agarose gel electrophoresis; ... |
|---|---|
| AVS | aortic valve stenosis; arteriovenous shunt; auditory vocal sequencing |
| GAWTS | genomic amplification with transcript sequencing |
| RAWTS | ribonucleic acid amplification with transcript sequencing |
| VMST | visual motor sequencing test |
| SBT | Sequencing Based Typing |
|---|---|
| SBR | Sequencing Batch Reactor |
| SBH | Sequencing by Hybridization |
| AGID | Agar Gel Immunodiffusion |
| AGP | Agar Gel Precipitin |
| gene sequencing | Determination of the sequence of nucleotide bases in a strand of DNA. (14 Nov 1997) |
|---|---|
| maxam-gilbert sequencing | A lab technique used to find out the sequence of nucleotide bases in a nucleic acid (a DNA or RNA molecule). The technique involves putting copies of the nucleic acid into separate test tubes, each of which contains a chemical that will cleave the molecule at a different base (either adenine, guanine, cytosine, or thymine or uracil (the last depending on whether it is DNA or RNA)). The result is that each of the test tubes contains fragments of the nucleic acid that all end at the same base, but at different points on the molecule where the base occurs. The contents of the test tubes are then separated by size with gel electrophoresis (one gel well per test tube, four total wells), the smallest fragments will travel the farthest and the largest will travel the least far from the well. The sequence can then be determined from the picture of the finished gel by noting the sequence of the marks on the gel and from which well they came from. (09 Oct 1997) |
| Maxim-Gilbert sequencing | <molecular biology> A method of sequencing DNA using dimethyl sulfate and hydrazinolysis. (05 Mar 2000) |
| chemical sequencing | A lab technique used to determine the sequence of nucleotides in a DNA molecule. The DNA molecule is labelled with radioactive phosphorous (chemical element P), cut into fragments, and analysed through electrophoresis. (09 Oct 1997) |
| protein sequencing | Determining the sequence of amino acids in a protein, a process carried out by automated techniques. (14 Nov 1997) |
| sequencing | <molecular biology, procedure> Determination of the order of nucleotides (base sequences) in a DNA or RNA molecule or the order of amino acids in a protein. (11 Jun 1998) |
| dideoxy sequencing | The most popular method of DNA sequence determination (c.f. Maxam Gilbert sequencing). Starting with single stranded template DNA, a short complementary primer is annealed and extended by a DNA polymerase. The reaction is split into 4 tubes (called A, C, G or T) each containing a low concentration of the indicated dideoxy nucleotide, in addition to the normal deoxynucleotides. Dideoxynucleotides, once incorporated, block further chain extension and so each tube accumulates a mixture of chains of lengths determined by the template sequence. The 4 reactions are denatured and run out on an acrylamide sequencing gel in neighbouring lanes and the sequence read up the gel according to the order of the bands. (18 Nov 1997) |
| DNA sequencing | <molecular biology> Any lab technique used to find out the sequence of nucleotide bases in a DNA molecule or fragment. Examples are dideoxy sequencing and Maxam-Gilbert sequencing. (09 Oct 1997) |
| agar-gel reaction | <immunology> The reaction between an antibody and an antigen during an immunology lab procedure where the two are allowed to diffuse toward each other through an agar-gel medium. Lines of precipitation form in the places on the gel where the two react with each other and shows where the reaction has occurred. (09 Oct 1997) |
| agarose gel electrophoresis | <procedure> A type of electrophoresis that uses a matrix of highly purified agar to separate large nucleotides in size. (06 May 1997) |
| aluminum hydroxide gel | A suspension containing Al2O3, mainly in the form of aluminum hydroxide, used as an antacid; a dried form, with the same use, is obtained by drying the product of interaction in aqueous solution of an aluminum salt with ammonium or sodium carbonate. (05 Mar 2000) |
| aluminum phosphate gel | An aqueous suspension of between 4.0 and 5.0% of aluminum phosphate; used as an antacid. (05 Mar 2000) |
| bag-gel implant | An implant composed of a silicone rubber bag containing a silicone gel; used in augmentation mammaplasty. (05 Mar 2000) |
| gel | Jelly like material formed by the coagulation of a colloidal liquid. Many gels have a fibrous matrix and fluid filled interstices: gels are viscoelastic rather than simply viscous and can resist some mechanical stress without deformation. Examples are the gels formed by large molecules such as collagen (and gelatin), agarose, acrylamide and starch. (18 Nov 1997) |
| gel diffusion | Diffusion in a gel, as in the case of gel diffusion precipitin tests in which the immune reactants diffuse in agar. See: immunodiffusion. (05 Mar 2000) |
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