Книга: Loeb Jacques «Artificial parthenogenesis and fertilization»

Artificial parthenogenesis and fertilization

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Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи" :помарки, кляксы и т. п.

Издательство: "Книга по Требованию" (2011)

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Loeb, Jacques

▪ German biologist

born April 7, 1859, Mayen, near Koblenz, Prussia [now in Germany]
died Feb. 11, 1924, Hamilton, Bermuda
 German-born American biologist noted chiefly for his experimental work on artificial parthenogenesis (reproduction without fertilization).

      Having received an M.D. degree from the University of Strasbourg (1884), Loeb began work in biology at the University of Würzburg (1886–88) and continued at the University of Strasbourg (1888–90) and the Naples biological station (1889–91). In 1891 he moved to the United States, becoming professor successively at Bryn Mawr (Pa.) College (1891–92), the University of Chicago (1892–1902), and the University of California, Berkeley (1902–10). In 1910 he became a member of the Rockefeller Institute for Medical Research (now Rockefeller University), New York City, a position he held until his death. A good deal of his experimental work was done at the Marine Biological Laboratory at Woods Hole, Mass.

      Popular interest, attended by some controversy, accompanied his parthenogenesis experiments, beginning in 1899, when he succeeded in bringing about the development of sea urchin larvae from unfertilized eggs by exposing them to controlled changes in their environment. This work was later extended to the production of parthenogenetic frogs, which he raised to sexual maturity. Loeb's work was significant in showing that the initiation of cell division in fertilization was controlled chemically and was in effect separate from the transmission of hereditary traits.

      Loeb also is remembered for his work on the physiology of the brain, animal tropisms (involuntary orientations), regeneration of tissue, and the duration of life. He is noted for his arguments in favour of mechanism, the belief that the phenomena of life can be explained in terms of physical and chemical laws. In his later years he made important contributions to the theory of colloidal behaviour of proteins.

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Источник: Loeb, Jacques

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Loeb JacquesArtificial parthenogenesis and fertilizationКнига представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по… — Книга по Требованию, - Подробнее...2011
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См. также в других словарях:

  • Parthenogenesis — (from the Greek παρθένος parthenos , virgin , + γένεσις genesis , creation ) is an asexual form of reproduction found in females where growth and development of embryos or seeds occurs without fertilization by a male. The offspring produced by… …   Wikipedia

  • Parthenogenesis — Development of a germ cell without fertilization. This is what happens in the formation of ovarian teratomas (dermoid cysts). All of the chromosomes in these benign tumors of the ovary come from the mother. The counterpart of the ovarian teratoma …   Medical dictionary

  • Jacques Loeb — Infobox Scientist name = Jacques Loeb box width = image width =150px caption = Jacques Loeb birth date = April 7, 1859 birth place = Mayen, Rhineland Palatinate death date = February 11, 1924 death place = Hamilton, Bermuda residence =… …   Wikipedia

  • Thomas Hunt Morgan — Infobox Scientist name = Thomas Hunt Morgan box width = image size =200px caption =Johns Hopkins yearbook of 1891 birth date = Birth date|1866|9|25 birth place = Lexington, Kentucky death date = Death date and age|1945|12|4|1866|9|25 death place …   Wikipedia

  • Jacques Loeb — (Mayen cerca de Coblenza 7 de abril de 1859 Hamilton en las islas Bermudas 11 de febrero de 1924) fue un fisiólogo y biólogo estadounidense nacido en Alemania …   Wikipedia Español

  • Jacques Loeb — Pour les articles homonymes, voir Loeb. Jacques Loeb Jacques Loeb est un biologiste américain d’origine allemande, né le 7  …   Wikipédia en Français

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