. A critique of the theory of evolution. Evolution. THEORY OF EVOLUTION 125 In man there are several characters tliat sliow exactly this same kind of inheritance. Color blindness, or at least certain kinds of color blindness, appear to follow the same scheme. A color blind father transmits through his daugh- ters his peculiarity to half of his grandsons, but to none of liis grand-daughters (fig. 38A). ? ^ Diploid Nuclei XX. Gametes Fertilization Zygotes Fig. 60. Diagram of sex determination in type with XX female and XO male (after Wilson). The result is the same as in the case of the white ey
. A critique of the theory of evolution. Evolution. THEORY OF EVOLUTION 125 In man there are several characters tliat sliow exactly this same kind of inheritance. Color blindness, or at least certain kinds of color blindness, appear to follow the same scheme. A color blind father transmits through his daugh- ters his peculiarity to half of his grandsons, but to none of liis grand-daughters (fig. 38A). ? ^ Diploid Nuclei XX. Gametes Fertilization Zygotes Fig. 60. Diagram of sex determination in type with XX female and XO male (after Wilson). The result is the same as in the case of the white eyed male of Drosophila. Color blind women are rather unusual, which is expected from the method of inheritance of this character, but in the few known cases where such color blind women have married normal husbands the sons have inherited the peculiarity from the mother (fig. 38B). Here again tlie result is the same as for tlie similar combination in 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 Morgan, Thomas Hunt, 1866-; Princeton University. Louis Clark Vanuxem Foundation. Princeton University Press; [etc. ]
Size: 1475px × 1694px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectevoluti, bookyear1916
