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Boveri, Theodor Heinrich

chromosomes heredity development species

[bo veri] (1862–1915) German cytologist: did basic work on relation of chromosomes to heredity.

Boveri began his university life as a student of history and philosophy at Munich, but soon changed to science and later taught zoology and anatomy at Munich and Würzburg. By 1884 it was known (largely from work) that in sexual reproduction the nuclei of spermatozoon and ovum provide equal numbers of chromosomes in the fusion which is the central feature of fertilization; that the chromosome number is constant for a given species; and that heredity is dependent on the nucleus. Boveri confirmed and extended Beneden’s work on cell division using the roundworm Ascaris , and went on to study sea-urchin eggs. He was able to show that embryos that are deficient in chromosomes develop abnormally into the new individual and that normal development requires not only an appropriate number of chromosomes for the species but a particular selection of chromosomes. This implied that each chromosome carried in some way certain specific determiners for growth and development, and by 1910 it was fairly widely accepted that the chromosomes are the vehicles of heredity.

Bovet, Daniel [next] [back] Boutros-Ghali, Boutros (1922–) - PERSONAL HISTORY, INFLUENCES AND CONTRIBUTIONS, BIOGRAPHICAL HIGHLIGHTS, PERSONAL CHRONOLOGY:, THE WORLD’S PERSPECTIVE, LEGACY

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