File:Heredity and sex (1913) (14594241048).jpg

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Identifier: hereditysex1913morg (find matches)
Title: Heredity and sex
Year: 1913 (1910s)
Authors: Morgan, Thomas Hunt, 1866-1945
Subjects: Heredity Sex Heredity
Publisher: New York, Columbia University Press
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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o Chn 660 o 6 Fig. 116. — Pedigree of Ichthyosis from Bramwell. (After Davenport.) vision. The sons will all be normal, since theyget the X chromosomes from their mother. In thenext generation, as shown in the diagram (third hne),four classes arise, normal females, hybrid females, normalmales, and hsemophilious males. Color blindness fol-lows the same scheme, as the above diagrams illustrate(Figs. 114 and 115). In the first diagram the color-blind male is represented by a black eye; the normalfemale by an eye without color. The offspring from SPECIAL CASES OF SEX-INHERITANCE 243
Text Appearing After Image:
244 HEREDITY AND SEX two such individuals are normal, but the color blindnessreappears in one-fourth of the grandchildren, and inthese only in the males. The reverse mating is shownin the next diagram in which the female is color-blind.She will have color-blind sons and normal daughters(criss-cross inheritance), and all four kinds of grand-children. Other cases in man that are said to show sex-linkedinheritance are atrophy of the optic nerve, multiple cTT^ *P iSiiiiiliitiiiii

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Flickr tags
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  • bookid:hereditysex1913morg
  • bookyear:1913
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Morgan__Thomas_Hunt__1866_1945
  • booksubject:Heredity
  • booksubject:Sex
  • bookpublisher:New_York__Columbia_University_Press
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:257
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
  • BHL Collection
Flickr posted date
InfoField
30 July 2014



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