| germinal mosaicism | Gonadal mosaicism, a state in which cells in a sector of a gonad are of a form not present in either parent, because of mutation in an intermediate progenitor of that sector. (05 Mar 2000) |
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| gene mosaicism | <genetics> Descriptive of an organism that consists of two or more genetically distinct cell lines. (14 Nov 1997) |
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| cellular mosaicism | A chimerism in which a tissue contains cells from different zygotes; e.g., in humans, involving erythrocytes. (05 Mar 2000) |
| chromosome mosaicism | See: mosaic. (05 Mar 2000) |
| mosaicism | The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from a single zygote. (12 Dec 1998) |
| germinal | Pertaining or belonging to a germ; as, the germinal vesicle. <biology> Germinal layers, the nucleus of the ovum of animals. See: Germ. Source: Websters Dictionary (01 Mar 1998) |
| germinal aplasia | A disorder in which the seminiferous tubules exhibit an abnormal cytoarchitecture and extensive hyalinization; the testes are small, and few spermatozoa are formed; the body habitus may be eunuchoid, and gynaecomastia may be present; urinary gonadotropin output is usually high, and the incidence of mental deficiency and illness increased; sex chromatin may be male or female, and androgen secretion ranges from subnormal to normal. It is a constant feature of (and is often used synonymously with) Klinefelter's syndrome. Synonym: germinal aplasia. (05 Mar 2000) |
| germinal area | Area germinativa, the place in the blastoderm where the embryo begins to be formed. Synonym: germinal disk. (05 Mar 2000) |
| germinal cell | A cell from which other cell's proliferate. (05 Mar 2000) |
| germinal centre | Areas within lymph nodes where B lymphocytes rapidly divide. (09 Oct 1997) |
| germinal centre kinase | <enzyme> A human ste20 homolog; mw 97 kD; has been sequenced Registry number: EC 2.7.10.- Synonym: germinal centre kinase gck, gc kinase, bl44 gene product (26 Jun 1999) |
| germinal centre of Flemming | The lightly staining centre in a lymphatic nodule in which the predominant cells are large lymphocytes and macrophages. Synonym: reaction centre. (05 Mar 2000) |
| germinal cords | The gonadal cord's of the embryonic ovary or testis. Synonym: sex cords. (05 Mar 2000) |
| germinal disk | Germ disk, the point in a telolecithal ovum where the embryo begins to be formed. Synonym: embryonic disk, germinal area, area germinativa. (05 Mar 2000) |
| germinal epithelium | A cuboidal layer of peritoneal epithelium covering the gonads, once thought to be the source of germ cells. (05 Mar 2000) |
| germinal infection | Infection of a baby with a disease by way of a parent's gamete (sperm or ovum). (09 Oct 1997) |