| genes, vpu | DNA sequences that form the coding region for the HIV-1 regulatory protein vpu (viral protein u) that greatly increases the export of virus particles from infected cells. The vpu genes are not present in HIV-2 or siv. (12 Dec 1998) |
|---|---|
| genes, wilms' tumour | Tumour suppressor genes located in the 11p13 region on the short arm of human chromosome 11. The absence of these genes is associated with the formation of wilms' tumour. (12 Dec 1998) |
| genesee epoch | <geology> The closing subdivision of the Hamilton period in the American Devonian system; so called because the formations of this period crop out in Genesee, new York. Source: Websters Dictionary (01 Mar 1998) |
| genesial | Relating to generation. (05 Mar 2000) |
| genesial cycle | The reproductive period of a woman's life. (05 Mar 2000) |
| genesiology | The branch of science concerned with generation or reproduction. Origin: G. Genesis, generation, + logos, study (05 Mar 2000) |
| genesis | The beginning of a process. (16 Dec 1997) |
| genethlialogy | Divination as to the destinies of one newly born; the act or art of casting nativities; astrology. Origin: Gr. Astrology; birth + discourse. Source: Websters Dictionary (01 Mar 1998) |
| genetic | <biology> Pertaining to reproduction or to birth or origin. (07 May 1998) |
| genetic amplification | A process for producing an increase in pertinent genetic material, particularly for increasing the proportion of plasmid DNA to that of bacterial DNA. Includes the production of extrachromosomal copies of the genes for RNA. (05 Mar 2000) |
| genetic assimilation | <genetics> A situation in which a characteristic that is normally expressed only in certain environmental situations becomes fixed in a population so that it no longer requires environmental factors to be expressed. (07 May 1998) |
| genetic association | The occurrence together in a population, more often than can be readily explained by chance, of two or more traits of which at least one is known to be genetic. (05 Mar 2000) |
| genetic block | <biochemistry, molecular biology> An obstruction in a biochemical pathway caused by a mutation that has crippled production of an enzyme critical to the pathway. (07 May 1998) |
| genetic burden | The genetic debt due to harmful mutation but as yet undischarged. (In a large population of fixed size every mutation with diminished genetic fitness will eventually become extinct and depending on the details of inheritance and phenotype must be paid for by a fixed number of genetic deaths per mutation, the genetic debt.) (05 Mar 2000) |
| genetic carrier | An unaffected heterozygote bearing a usually harmful recessive gene, a cancer that bears a dominant but latent age-dependent trait to have offspring with unbalanced karyotypes. (05 Mar 2000) |