[Image of the book's cover unavailable.]
{1}
THE GENETIC AND THE OPERATIVE EVIDENCE
RELATING TO SECONDARY SEXUAL
CHARACTERS
By T. H. Morgan


[Image unavailable.]


Published by the Carnegie Institution of Washington

Washington, 1919
{2}
CARNEGIE INSTITUTION OF WASHINGTON

Publication No. 285

PRESS OF GIBSON BROTHERS, INC.
WASHINGTON, D. C.
{3}
CONTENTS.
Part 1. 
 PAGE.
Introduction5
Castration of Sebrights6
A male Sebright that did not become cock-feathered after castration10
Transitional feathers10
Castration of F₁ hen-feathered males from Sebright by game11
Castration of F₂ hen-feathered males13
Hewitt’s Sebright hen that became cock-feathered in old age14
Heredity of hen-feathering14
Heredity of color in the cross between Sebright and Black-Breasted Game bantam17
      A. The F₁ birds18
      B. Description of F₂ birds19
      C. Back-cross of F₁ to game21
      D. The number of color factors involved22
      E. Back-cross of F₁ ♀ to Sebright ♂23
      F. Review of the heredity of the color of the plumage in po                        
...
                        
BU KİTABI OKUMAK İÇİN ÜYE OLUN VEYA GİRİŞ YAPIN!

                        
Sitemize Üyelik ÜCRETSİZDİR!