Mouse sex vesicle. C-band and pairing at the light and electron microscope |
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Authors: | Maria Luiza Beçak Sylvia M. Carneiro W. Beçak |
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Affiliation: | (1) Serviço de Genética, Instituto Butantan, C. Postal 65, São Paulo, Brazil |
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Abstract: | Summary C banded mouse pachytene chromosomes were studied with the light and electron microscopes by the whole mount technique. The X and Y chromosomes show pairing by the long, by the short or by both long and short arms. Assuming Lyon's hypothesis, the latter suggests that the Y segment transferred to the X is intercalar. With the light microscope, a negative image of the synaptonemal complex is evidenced.This work was supported by grants of the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Fundo Especial de Despesas do Instituto Butantan (FEDIB).We acknowledge Dr. N. Leon for his editorial suggestions. |
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