| mice, quaking | Mice homozygous for the mutant autosomal recessive gene, quaking (qk), associated with disorder in myelin formation and manifested by axial tremors. (12 Dec 1998) |
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| mice, scid | Mice homozygous for the mutant autosomal recessive gene "scid" which is located on the centromeric end of chromosome 16. These mice lack mature, functional lymphocytes and are thus highly susceptible to lethal opportunistic infections if not chronically treated with antibiotics. The lack of b- and T-cell immunity resembles severe combined immunodeficiency (scid) syndrome in human infants. Scid mice are useful as animal models since they are receptive to implantation of a human immune system producing scid-human (scid-hu) haematochimeric mice. (12 Dec 1998) |
| mice, transgenic | Laboratory mice that have been produced from a genetically manipulated egg or embryo. The technique involves microinjection of foreign DNA fragments into the nucleus of the fertilised egg and transferring it into the uterus of a foster mother mouse. The inserted gene becomes integrated into every cell and tissue of the developing mouse, including its germ line cells. (12 Dec 1998) |
| micella | Origin: NL, dim. Of L. Mica a morsel, grain. <biology> A theoretical aggregation of molecules constituting a structural particle of protoplasm, capable of increase or diminution without change in chemical nature. Source: Websters Dictionary (01 Mar 1998) |
| micellar | Having the properties of an assemblage of micelles, i.e., of a gel. (05 Mar 2000) |
| micelle | 1. <biochemistry> A globule of lipid molecules in water where their nonpolar ends face inward and their polar tails face outward. 2. <chemistry> A colloid particle formed by an aggregation of small molecules. (12 Jan 1998) |
| micelles | Electrically charged colloidal particles or ions consisting of oriented molecules; aggregates of a number of molecules held loosely together by secondary bonds. (12 Dec 1998) |