. Cytology, with special reference to the metazoan nucleus. Cells. B • • • % « ? ?.? «.Jl •;.:t4i\^'?;-"'. X •- -Y X H Fig. 48. The chromosomes of Gelastocoris. (Payne, , 1909.) A, 9 diploid group, 30 + 2X4=^38 chromosomes; B, i diploid group, 30 + .X4 + Y = 35 chromosomes; C, metaphase l.,S, 15+ X4 + Y = 20 chromosomes ; D. metaphase II., i ; the sex chromosomes are in the middle of the ring, the four components of the X chromo- some in a group opposed to the single Y chromosome which is partly underneath them; E, metaphase II., <5; F, anaphase II., (J ; G, H, polar views of anaph
. Cytology, with special reference to the metazoan nucleus. Cells. B • • • % « ? ?.? «.Jl •;.:t4i\^'?;-"'. X •- -Y X H Fig. 48. The chromosomes of Gelastocoris. (Payne, , 1909.) A, 9 diploid group, 30 + 2X4=^38 chromosomes; B, i diploid group, 30 + .X4 + Y = 35 chromosomes; C, metaphase l.,S, 15+ X4 + Y = 20 chromosomes ; D. metaphase II., i ; the sex chromosomes are in the middle of the ring, the four components of the X chromo- some in a group opposed to the single Y chromosome which is partly underneath them; E, metaphase II., <5; F, anaphase II., (J ; G, H, polar views of anaphase II., J—G with the Y chromosome, H with the X 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
