Archive image from page 71 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agar_0 Year: 1920 4 -«?wv ;/ Fig. 2i. Early stages of oogenesis in the cat. (After von Winiwater and Sainmont, A .B., 1909.) A, young oocyte I., chromatin mostly very finely divided; B, C, development of leptotene stage; D, zygotene ; E, pachytene; F, diplotene stages ; G, H, development of ' germinal vesicle ' stage. be very large and richly provided with reserve food material; the achievement of this is materially assisted by the concentration of prac
Archive image from page 71 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agar_0 Year: 1920 4 -«?wv ;/ Fig. 2i. Early stages of oogenesis in the cat. (After von Winiwater and Sainmont, A .B., 1909.) A, young oocyte I., chromatin mostly very finely divided; B, C, development of leptotene stage; D, zygotene ; E, pachytene; F, diplotene stages ; G, H, development of ' germinal vesicle ' stage. be very large and richly provided with reserve food material; the achievement of this is materially assisted by the concentration of prac- tically the whole of the reserve material into one macrogamete, instead of its partition among four. The correspondence between the mature egg with its polar bodies and the four spermatids derived from one spermatocyte is of course only complete in those cases where the first polar body divides into two, giving
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