. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. ^^ ^ .^: W ^^^ ^^r 'i 'f ii* V ^<- Fig. 21. Early stages of oogenesis in the cat. (After von Winiwatcr and Sainmont, A .B., 1909.) A, young oocyte I., chromatin mostly very finely divided; 13, 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 tliis is materially assisted by the concentration of prac- tically the whole of the reserve material in
. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. ^^ ^ .^: W ^^^ ^^r 'i 'f ii* V ^<- Fig. 21. Early stages of oogenesis in the cat. (After von Winiwatcr and Sainmont, A .B., 1909.) A, young oocyte I., chromatin mostly very finely divided; 13, 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 tliis 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. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agar, Wilfred Eade, 1882-. London Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcells, bookyear1920
