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Glossary Biotechnology Part: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 (Continued from previous part...) J 1. Joining segment, q.v. 2. Joule, q.v. Jiffy potTM Pots made from wood pulp and peat, commonly used for transplanting tissue-culture-derived plants into soil medium. JIVET See juvenile in vitro embryo technology. JIVT See juvenile in vitro embryo technology. J/m2; J m-2 (joules per square metre) A unit of light measurement. joining segment (J) A small DNA segment that links genes in order to yield a functional gene encoding an immunoglobulin. joule (SI symbol: J) The amount of energy needed to apply a force of 1 newton over a distance of 1 metre. jumping genes See transposable elements. jumping library See chromosome jumping. juvenility Early phase of development in which an organism is juvenile and incapable of sexual reproduction. juvenile hormone A hormone secreted by insects from a pair of endocrine glands close to the brain. It inhibits metamorphosis and maintains the larval features. juvenile in vitro embryo technology (JIVT; JIVET) A technology involving collection of immature ova from young animals, in vitro maturation of those ova, in vitro fertilization, and then transfer of the resultant embryos into recipient females. A method of achieving rapid generation turnover. (Continued on next part...)
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