The genetic and the operative evidence relating to secondary sexual characters (Illustrated)

The genetic and the operative evidence relating to secondary sexual characters (Illustrated)

by Thomas Hunt Morgan

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Overview

There are a few races of poultry that have two kinds of males, one with the feathering of the ordinary cock, the other with the feathering of the hen. The Hamburgs and the Campines are perhaps the best known races of this sort. Convention amongst breeders, in certain countries, has determined that the cock-feathered bird shall be the standard, and at other times and places that the hen-feathered males shall be the show birds. In one breed, at least, viz., the Sebright bantams, the hen-feathered cock is the only known type.

Product Details

BN ID: 2940163152667
Publisher: V F Editions
Publication date: 08/31/2019
Sold by: Barnes & Noble
Format: NOOK Book
File size: 523 KB

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