Boveri, Theodor Heinrich


Boveri, Theodor Heinrich
born Oct. 12, 1862, Bamberg, Bavaria
died Oct. 15, 1915, Würzburg

German cell biologist.

Working with roundworm eggs, Boveri proved that chromosomes are separate units within the nucleus of a cell. With Walter S. Sutton, he was the first to propose that genes were located on chromosomes. Boveri proved Edouard von Beneden's theory that the ovum (egg) and sperm cell contribute equal numbers of chromosomes to the new cell created during fertilization. He later introduced the term centrosome and demonstrated that this structure is the division centre for a dividing egg cell.

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▪ German cytologist
born October 12, 1862, Bamberg, Bavaria [Germany]
died October 15, 1915, Würzburg

      German cytologist whose work with roundworm eggs proved that chromosomes are separate, continuous entities within the nucleus of a cell.

      Boveri received an M.D. degree (1885) from the University of Munich and from 1885 until 1893 was engaged in cytological (cytology) research at the Zoological Institute in Munich. In 1885 he began a series of studies on chromosomes. His first major report (1887) described the development of an unfertilized egg, including the formation of polar bodies (small cells that result from the division of an unfertilized egg). Later he described finger-shaped lobes that appeared in the nuclei of eggs of the roundworm Ascaris during early cleavage stages. These structures, he decided, were chromosomes, previously believed to be part of the nucleus and present only during nuclear division. Boveri's third report proved the theory—introduced by Belgian cytologist Edouard van Beneden—that the ovum and sperm cell contribute equal numbers of chromosomes to the new cell created during fertilization.

      Later, Boveri introduced the term centrosome and demonstrated that this structure is the division centre for a dividing egg cell. He also proved that a single chromosome is responsible for particular hereditary traits and demonstrated the importance of cytoplasm by showing that chromosomes are influenced by the cytoplasm surrounding the nucleus. In 1893 he was appointed professor at the University of Würzburg.

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Universalium. 2010.

Look at other dictionaries:

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  • Boveri, Theodor Heinrich — (12 oct. 1862, Bamberg, Baviera–15 oct. 1915, Würzburg). Biólogo celular alemán. Trabajando con huevos de lombrices, demostró que los cromosomas son unidades separadas dentro del núcleo de las células. Con Walter S. Sutton fueron los primeros en… …   Enciclopedia Universal

  • Theodor Heinrich Boveri — Theodor Boveri Theodor Boveri Theodor Heinrich Boveri est un biologiste allemand, né le 12 octobre 1862 à Bamberg et mort le 15 octobre 1915. De 1880 à 1882, Eduard Adolf Strasburger (1844 1912) et Boveri décri …   Wikipédia en Français

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  • Theodor Boveri — Theodor Heinrich Boveri (* 12. Oktober 1862 in Bamberg; † 15. Oktober 1915 in Würzburg) war ein deutscher Biologe. 1880 bis 1882 beschrieben Eduard Strasburger und Theodor Boveri die Konstanz der Chromosomenzahl bei unterschiedlichen Arten (dies …   Deutsch Wikipedia

  • Theodor — (as used in expressions) Adorno Theodor Wiesengrund Billroth Christian Albert Theodor Böll Heinrich Theodor Boveri Theodor Heinrich Dreyer Carl Theodor Fechner Gustav Theodor Fontane Theodor Geiger Theodor Julius Geisel Theodor Seuss Herzl… …   Universalium

  • Theodor — (as used in expressions) Adorno, Theodor (Wiesengrund) Billroth, (Christian Albert) Theodor Böll, Heinrich (Theodor) Boveri, Theodor Heinrich Dreyer, Carl Theodor Fechner, Gustav Theodor Fontane, Theodor Geiger, Theodor Julius Geisel, Theodor… …   Enciclopedia Universal

  • Heinrich — /huyn rik/; Ger. /huyn rddikh/, n. a male given name, Germanic form of Henry. * * * (as used in expressions) Johann Heinrich Belter Bernstorff Johann Heinrich count von Böll Heinrich Theodor Boveri Theodor Heinrich Brauchitsch Heinrich Alfred… …   Universalium

  • Heinrich — (as used in expressions) Johann Heinrich Belter Bernstorff, Johann Heinrich, conde von Böll, Heinrich (Theodor) Boveri, Theodor Heinrich Brauchitsch, (Heinrich Alfred) Walther von Brüning, Heinrich Brunner, (Heinrich) Emil Bülow, Bernhard… …   Enciclopedia Universal

  • Theodor Boveri — Naissance 12 octobre 1862 Bamberg, Bavière (Allemagne) Décès 15 octobre 1915 …   Wikipédia en Français


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