differentiated embryo
51Uses and Ethics of Cloning — ▪ 1998 by Ian Wilmut The announcement in February 1997 of the birth of Dolly the sheep, the first clone of an adult mammal, attracted international attention because of the new medical and agricultural opportunities and the new ethical… …
52Magnoliidae — ▪ plant subclass Introduction subclass of woody or herbaceous flowering plants belonging to the class Magnoliopsida. Members of the Magnoliidae are dicotyledonous plants that retain some primitive anatomic and morphological… …
53Development of the reproductive system — The development of the reproductive system is a part of prenatal development, and concerns the sex organs. It is a part of the stages of sexual differentiation. Because its location to a large extent overlaps the urinary system, the development… …
54clone — clonal, adj. clonally, adv. cloner, n. /klohn/, n., v., cloned, cloning. n. 1. Biol. a. a cell, cell product, or organism that is genetically identical to the unit or individual from which it was derived. b. a population of id …
55Differentiation — 1 The process by which cells become progressively more specialized; a normal process through which cells mature. This process of specialization for the cell comes at the expense of its breadth of potential. Stem cells can, for example,… …
56Fetus — A fetus (or foetus or fœtus) is a developing mammal or other viviparous vertebrate, after the embryonic stage and before birth. The plural is fetuses, or sometimes feti. The fetal stage of prenatal development starts when the major structures… …
57Rhombomere — In the vertebrate embryo, a rhombomere is a transiently divided segment of the developing neural tube (a neuromere) in the area that will eventually become the rhombencephalon. The rhombomeres appear as a series of slightly constricted swellings… …
58Development of the urinary and reproductive organs — The development of the urinary and reproductive organs as a part of the prenatal development, concerns the urinary system and sex organs. The latter is a part of the stages of sexual differentiation. The urinary and reproductive organs are… …
59Rhamphorhynchus — For the orchid genus, see Aspidogyne mendoncae. Opisthokonta Rhamphorhynchus muensteri Temporal range: Late Jurassic, 150–148 Ma …
60Keith Campbell (biologist) — Biologist Professor Keith H. S. Campbell (born 1954) is an English biologist best known for being credited with the main role in the team that in 1996 first cloned a mammal, a Finn Dorset lamb named Dolly, from fully differentiated adult mammary… …
