Spermatogenesis Of Normal And Of Hybrid Pigeons

Author : Marine Biological Laboratory
Publisher : Forgotten Books
ISBN 13 : 9780332843865
Total Pages : 520 pages
Book Rating : 4.8/5 (438 download)

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Download or read book Biological Bulletin, 1916, Vol. 30 (Classic Reprint) written by Marine Biological Laboratory and published by Forgotten Books. This book was released on 2017-12-15 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Biological Bulletin, 1916, Vol. 30 Guyer in his excellent work on the spermatogenesis of normal and hybrid pigeons says: It is a remarkable fact that no attempt has been made so far to investigate carefully the spermatogenesis or ovogenesis of hybrid forms. In all the mass of literature discussing or touching upon hybridism, so far as I have been able to ascertain, there has been in no instance an approach to a thorough study of the germ cells. Yet almost every writer states that through the study of hybrids, we have perhaps the best opportunity for gaining a clew to many of the most vital points in the great problem of heredity. A number of investigators have remarked that in certain instances the anthers, ovary, or testes as the case might be, were defective, and have let the matter go at that. It is even more remarkable now, since fifteen years have elapsed and no further attempt has been made to investigate carefully the spermatogenesis or ovogenesis of other hybrid forms. Professor Guyer's work on hybrid pigeons which was published in 1900, the same year in which Mendel's investigations were rediscovered, so far remains as the only outstanding piece of work on that particular subject. It is all the more remarkable when we consider the fact that such a great deal of cytological work has been done during the past fifteen years and that by far the largest bulk of the work on hybridization has been done during the same period. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.