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File:The Mechanism of Mendelian heredity (1922) (20569202899).jpg

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Title: The Mechanism of Mendelian heredity
Identifier: cu31924003076639 (find matches)
Year: 1922 (1920s)
Authors: Morgan, Thomas Hunt, 1866-1945
Subjects: Mendel's law; Heredity; Chromosomes
Publisher: New York, H. Holt
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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TYPES OF MENDELIAN HEREDITY 29 the heterozygous condition; it is not possible to produce a pure breeding race of Andalusians, for the combination that produced an Andalusian falls apart in the germ cells of the Andalusian birds. The bird is blue because the pigment is not spread evenly over the feather but is restricted to small but black specks.
Text Appearing After Image:
Fig. 16.—Normal (a, a') and bar eye (6, b') of Drosophila; shown in side view, and as seen from above. The Andalusian blue is a mosaic of black and white, and not at aU a dilute black. A good example of an intermediate hybrid is found when the mutant fly with bar eye (Fig. 15) is bred to a wild fly. The daughters have bar eyes that are not as narrow as those of the pure bar stock. The range of variation is great, however, for some of the hybrids have eyes that are nearly as round as the normal, and

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Flickr tags
InfoField
  • bookid:cu31924003076639
  • bookyear:1922
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:Morgan_Thomas_Hunt_1866_1945
  • booksubject:Mendel_s_law
  • booksubject:Heredity
  • booksubject:Chromosomes
  • bookpublisher:New_York_H_Holt
  • bookcontributor:Cornell_University_Library
  • booksponsor:MSN
  • bookleafnumber:48
  • bookcollection:cornell
  • bookcollection:biodiversity
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
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21 August 2015
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