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Document Type

Research

Abstract

Characters fall into four classes when related to sex. The first type is represented by horns in cattle, and red, black and white coats in swine, their appearance being entirely independent of sex. At the opposite extreme are those characters that are confined to one sex only, as the male plumage of the Brown Leghorn or pheasant. Similarly, although exhibiting different behavior somatically, are characters like mammae or tusks that exist in a rudimentary condition, or at least a relatively undeveloped condition, in one sex. Characters of this sort are intimately related to the sex glands and removal of the gland in the young animal will usually cause such characters to remain in the juvenile stage.

Publication Date

1914

Journal Title

Proceedings of the Iowa Academy of Science

Volume

21

Issue

1

First Page

265

Last Page

268

Copyright

© Copyright 1914 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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