. Heredity in relation to evolution and animal breeding, . Heredity. HEEEDITY See Fig. 49, left column. The eggs are, so far as we can discover, all of a single type. They BEE ROTIFER A PHID. FiQ. 49. — Diagram of sex-determination in parthenogenesis. First row, nuclear condition of the parthenogenetic mother; second row, of her eggs when they develop without reduction, after forming a single polar cell; third row, condition of the eggs after complete maturation — the fertilized egg in each case produces a male; fourth row, nuclear condition of the fertilized egg, always a female. undergo matu
. Heredity in relation to evolution and animal breeding, . Heredity. HEEEDITY See Fig. 49, left column. The eggs are, so far as we can discover, all of a single type. They BEE ROTIFER A PHID. FiQ. 49. — Diagram of sex-determination in parthenogenesis. First row, nuclear condition of the parthenogenetic mother; second row, of her eggs when they develop without reduction, after forming a single polar cell; third row, condition of the eggs after complete maturation — the fertilized egg in each case produces a male; fourth row, nuclear condition of the fertilized egg, always a female. undergo maturation in the manner already de- scribed, the chromosomes being reduced to the 16,2. 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 Castle, William E. (William Ernest), 1867-1962. New York ; London : D. Appleton and Company
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorklondondappl
