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. The physical basis of heredity . Heredity. SEX-CHEOMOSOMES AND INHERITANCE 173 character of his single Z-chromosome, and there are four kinds of these chromosomes in his mother on account of crossing over in the female. The other sex-chromosome, the Y, has no dominating FiQ. 72.—The Fa results from the reciprocal cross of that shown in Fig. 71. Sex-mnkep Inheritance of the Abbaxas Type In certain moths and birds it has been shown by the genetic evidence that the female is heterozygous for sex- linked factors. The cytological evidence, as far as it goes, supports this evidence, bu
. The physical basis of heredity . Heredity. SEX-CHEOMOSOMES AND INHERITANCE 173 character of his single Z-chromosome, and there are four kinds of these chromosomes in his mother on account of crossing over in the female. The other sex-chromosome, the Y, has no dominating FiQ. 72.—The Fa results from the reciprocal cross of that shown in Fig. 71. Sex-mnkep Inheritance of the Abbaxas Type In certain moths and birds it has been shown by the genetic evidence that the female is heterozygous for sex- linked factors. The cytological evidence, as far as it goes, supports this evidence, but for birds the material is so. 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, 1866-1945. Philadelphia : Lippincott
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphiladelphialippin