Archive image from page 95 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agaruoft Year: 1920 8o CYTOLOGY chap. but when the nuclei of the 2-cell stage are preparing for tlie next S,(A) S,(B) Differentiation of the genu-track in Ascaris megalocephala unwcUens. (After Bovexi, Fest. f. Kupffer, 1899, and Ergebnitse. 1004.) A, 2-ceU stage. Diminution taking place in the cell Si, chromosomes intact in P|. B, passage of the 2-cell into the 4-cell stage. In S\, numerous small chromosomes formed by the frag- mentation of the two
Archive image from page 95 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agaruoft Year: 1920 8o CYTOLOGY chap. but when the nuclei of the 2-cell stage are preparing for tlie next S,(A) S,(B) Differentiation of the genu-track in Ascaris megalocephala unwcUens. (After Bovexi, Fest. f. Kupffer, 1899, and Ergebnitse. 1004.) A, 2-ceU stage. Diminution taking place in the cell Si, chromosomes intact in P|. B, passage of the 2-cell into the 4-cell stage. In S\, numerous small chromosomes formed by the frag- mentation of the two large ones. The broken-orf ends of the latter are seen outside the equator of the spindle. C, 4-cell stage. In Sj(.4) and S\(B) the cast-out ends of the chromosomes are seen in the cytoplasm. D, mitosis which will give rise to the 8-cell stage. Diminution taking place in Sn, chromosomes intact in Pn. E, later embryo, process of diminution now complete. The two original chromosomes are still intact in P4 only. mitosis, one of them is marked out from the other by the fact that its
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Keywords: 1920, agar_wilfred_eade_1882_, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, cells, cytology, drawing, historical, history, illustration, image, london_macmillan, msn, page, picture, print, reference, vintage, zimmermann_a_albrecht_b_1860
