Article ID: CBB001214024

Cromossomos sexuais e determinação sexual? (2013)

unapi

0 =Igo publicado em outubro de 1905 par Edmund Beecher Wilson (1856-1939) aqui traduzido faz pane de urn conjunto de pes-quisas citolOgicas realizadas no inicio do seculo XX. Insere-se em uma tradicio de pesquisa sobre o nadao e a organizacio dos cromos-somos durante a gametogenese, em particular neste trabalho, sabre a espermatogenese de especies de Hemiputir (Morgan, 1940). Wilson dedicou-se Embriologia experimental, sendo que urn de seus principals objetos de estudo era o que foi chamado de "organi-zacio do Ovulo", bem como a clingem em celulas-ovo ern diverns especies. Uma das suas contribuicoes mais importantes pan a Biolo-gia ern Citologia foi a serie de oito estudos sabre cromossomos pu-blicados entre 1905 e 1912. o sistema de determinacio do sexo mais conhecido é aquele no qual as gametas de machos ou femeas sio diferentes e, a pardr da combinacio de determinados cromossomos ocorrem condic6es pan o surgimento de estruturas reprodutivas dos dois sexos durante o desenvolvimento embrioner. io. Entretanto, outros mecanismos de definisio sexual existem pan os organismos: em alguns organismos a

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Authors & Contributors
Lowe, James W. E.
Churchill, F. B.
Wülfingen, Bettina Bock v.
Wellmann, Janina
Weizmann, Fredric
Volpone, Alessandro
Concepts
Biology
Embryology
Cytology
Reproduction
Genetics
Cellular biology
Time Periods
20th century, early
19th century
20th century
20th century, late
18th century
Ancient
Places
United States
Netherlands
Greece
Germany
Rome (Italy)
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