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Heterozygosis In Evolution I
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Book Synopsis Heterozygosis in Evolution and in Plant Breeding by : Edward Murray East
Download or read book Heterozygosis in Evolution and in Plant Breeding written by Edward Murray East and published by . This book was released on 1912 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterozygosis in Evolution and in Plant Breeding (Classic Reprint) by : Edward Murray East
Download or read book Heterozygosis in Evolution and in Plant Breeding (Classic Reprint) written by Edward Murray East and published by Forgotten Books. This book was released on 2017-10-27 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Heterozygosis in Evolution and in Plant Breeding When a biologist begins any line of genetic work with either plants or animals he generally has occasion to differentiate his stock into. More or less pure types by in-and-in breeding. Frequently In the case of animals, and nearly always ln the case of plants that are naturally cross-fertilized, he finds there is a loss of vigor, usually unaccompanied by pathological symptoms. This loss of vigor is generally expressed by a decrease In the size of the individual, but it may be shown by a slight decrease in fertility. The phenomenon, although it probably occurs in all great groups reproducing sexually, is not general, however, for in many animals and in plants that are normally self-fertilized it is unnoticeable. If after obtaining his pure stocks the experimenter has occasion to cross strains that differ in character, he Often finds that the reverse phenomenon occurs. The vigor of the hybrid is greater than that of either parent. These manifestations have been noticed for over a century by plant breeders and for probably two thousand years or more by animal hybridizers. Until the end of the nineteenth century\ the interpretation of the phenomena, if, indeed, that which is Only a paraphrased statement of the facts can be called an interpreta tion, was that deterioration both morphological and physiological is the direct result Of inbreeding, and therefore occasional crossing of genetically distinct blood lines is a necessary requisite to vigor in every sexually propagated species. Seven years ago an extended series Of investigations was started at the Connecticut Agricultural Experiment Station having as their primary object an interpretation of these facts in keeping with the more extended knowledge comprised in modern biology. This paper presents a full account Of the views that the writers have come to hold through the data gathered in these experiments, although it has not been thought necessary or advisable to confuse the arguments by overloading it with all of the data in their posses. 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.
Book Synopsis Genetic Homeostasis (Classic Reprint) by : I. Michael Lerner
Download or read book Genetic Homeostasis (Classic Reprint) written by I. Michael Lerner and published by Forgotten Books. This book was released on 2018-10-04 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Genetic Homeostasis Other types Of evidence, which contribute to the problem but which will be considered here in less detail include. 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.
Book Synopsis Collected Papers by : Edward Murray East
Download or read book Collected Papers written by Edward Murray East and published by . This book was released on 1912 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evolution and the Genetics of Populations, Volume 3 by : Sewall Wright
Download or read book Evolution and the Genetics of Populations, Volume 3 written by Sewall Wright and published by University of Chicago Press. This book was released on 1984-06-15 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes discuss evolutionary biology through the lense of population genetics.
Book Synopsis Bulletin by : United States. Bureau of Plant Industry
Download or read book Bulletin written by United States. Bureau of Plant Industry and published by . This book was released on 1912 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1912 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin by : U.S. Bureau of plant industry
Download or read book Bulletin written by U.S. Bureau of plant industry and published by . This book was released on 1912 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contributions from the Laboratory of Plant Genetics by : Bussey Institution
Download or read book Contributions from the Laboratory of Plant Genetics written by Bussey Institution and published by . This book was released on 1913 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Notes on the Germination of Tobacco Seed. [I-III] by : Thomas Harper Goodspeed
Download or read book Notes on the Germination of Tobacco Seed. [I-III] written by Thomas Harper Goodspeed and published by . This book was released on 1922 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Intensive Beef Production by : T. R. Preston
Download or read book Intensive Beef Production written by T. R. Preston and published by Elsevier. This book was released on 2013-10-22 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive Beef Production, Second Edition focuses on the technologies, methodologies, and approaches involved in beef production, including genetics, breeding, feed utilization, fertility, and growth efficiency. The publication first elaborates on the beef market, carcass composition and quality, and genetic improvement. Discussions focus on breeding systems, correlation between traits, selection for meat production in dairy cattle, body weight and composition, carcass evaluation, consumption, and international trade. The book then examines genotype, physiology of digestion and feed utilization, and beef calf production, including factors controlling feed intake, nitrogen utilization, artificial methods of augmenting fertility, birth weight, calf mortality, and weaning weight. The text takes a look at dairy calf production, breed, sex, and hormones, and growth and efficiency. Topics include energy concentration and source, grain processing, protein, antibiotics, vitamins, growth mechanisms, breed, hormones, breed suitability, and mortality and disease. The book is a valuable reference for researchers interested in beef production.
Book Synopsis Genomic and Personalized Medicine by :
Download or read book Genomic and Personalized Medicine written by and published by Academic Press. This book was released on 2012-10-30 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomic and Personalized Medicine, Second Edition — winner of a 2013 Highly Commended BMA Medical Book Award for Medicine — is a major discussion of the structure, history, and applications of the field, as it emerges from the campus and lab into clinical action. As with the first edition, leading experts review the development of the new science, the current opportunities for genome-based analysis in healthcare, and the potential of genomic medicine in future healthcare. The inclusion of the latest information on diagnostic testing, population screening, disease susceptability, and pharmacogenomics makes this work an ideal companion for the many stakeholders of genomic and personalized medicine. With advancing knowledge of the genome across and outside protein-coding regions of DNA, new comprehension of genomic variation and frequencies across populations, the elucidation of advanced strategic approaches to genomic study, and above all in the elaboration of next-generation sequencing, genomic medicine has begun to achieve the much-vaunted transformative health outcomes of the Human Genome Project, almost a decade after its official completion in April 2003. Highly Commended 2013 BMA Medical Book Award for Medicine More than 100 chapters, from leading researchers, review the many impacts of genomic discoveries in clinical action, including 63 chapters new to this edition Discusses state-of-the-art genome technologies, including population screening, novel diagnostics, and gene-based therapeutics Wide and inclusive discussion encompasses the formidable ethical, legal, regulatory and social challenges related to the evolving practice of genomic medicine Clearly and beautifully illustrated with 280 color figures, and many thousands of references for further reading and deeper analysis
Book Synopsis Evolution and the Genetics of Populations, Volume 4 by : Sewall Wright
Download or read book Evolution and the Genetics of Populations, Volume 4 written by Sewall Wright and published by University of Chicago Press. This book was released on 1984-06-15 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes discuss evolutionary biology through the lense of population genetics.
Download or read book Polyploidy written by Walter H. Lewis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyploidy as a dramatic mutational event in the process of evolution has wide implications in nature and for the generation of new and improved crops. The three day Conference on POLYPLOIDY: BIOLOGICAL RELEVANCE focused on three aspects of this natural phenomenon: the first emphasized the characteristics of polyploidy, the second described the occurrence of polyploidy among plants and animals, and the third considered past and future areas of both fundamental and pragmatic research that involve polyploidy. New information relative to origin, cytogenetics, ecology, physiology, biochemistry, and populational studies stress the need to reexamine current views on the origins of polyploidy and its significance among both plants and animals. There are major differences in the occurrence of polyploidy between. plant groups and it is proving a much more common event among bisexual vertebrates than heretofore considered possible. Crop development and improvement must utilize approaches based fundamentally on more natural systems; in fact future research should focus more on polyploidy as a natural phenomenon that needs study at all levels of endeavor from field-oriented populational aspects to sophisticated molecular analyses and genome manipulations. This volume provides a summary of current knowledge of polyploidy pertinent to botanists, zoologists, and agriculturists who are interested in the evolution o~natural systems and who are concerned with the contribution that crop improvement can make to human well-being. Walter H. Lewis St. Louis, Missouri October, 1979 v ACKNOWLEDGMENTS The Host Committee thanks all speakers and moderators for their generous contribution to the Conference and to this volume.
Book Synopsis Evolutionary Biology by : Max K. Hecht
Download or read book Evolutionary Biology written by Max K. Hecht and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolutionary Biology, of which this is the twenty-second volume, continues to offer its readers a wide range of original articles, reviews, and commentaries on evolution, in the broadest sense of that term. The topics of the reviews range from anthropology, molecular evolution, and paleobiology to principles of systematics. In recent volumes, a broad spectrum of articles have appeared on such subjects as asymmetric sexual isolation, biochemical systematics in plants, species selection, DNA hybridization and phylogenetics, modes of evolution in Pleistocene rodents, and development and evolution of the vertebrate limb. We have also attempted to provide a forum for conƯ flicting ideas. Articles such as these, often too long for standard journals, are the material for Evolutionary Biology. The editors continue to solicit manuscripts on an international scale in an effort to see that everyone ofthe many facets of biological evolution is covered. Manuscripts should be sent to anyone of the following: Max K. Hecht, Department of Biology, Queens College of the City University of New York, Flushing, New York 11367; Bruce Wallace, Department of Biology, Virginia Polytechnic Institute and State University, BlacksƯ burg, Virginia 24061; GhilleanT. Prance, New York Botanical Garden, Bronx, New York 10458. The Editors vii Contents 1. Phylogeny of Early Vertebrate Skeletal Induction and Ossification Patterns ... 1 John G. Maisey Introduction: The Fossil Record.. .. .. ... .. .. .. .. .. .. .. .. .. .. .. 1.
Book Synopsis Essential Readings in Evolutionary Biology by : Francisco J. Ayala
Download or read book Essential Readings in Evolutionary Biology written by Francisco J. Ayala and published by JHU Press. This book was released on 2014-03-15 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traces scholarly thought from the nineteenth-century birth of evolutionary biology to the mapping of the human genome through forty-eight essays, arranged in chronological order, each preceded by a one-page essay that explains the significance of the chosen work.
Book Synopsis Sewall Wright and Evolutionary Biology by : William B. Provine
Download or read book Sewall Wright and Evolutionary Biology written by William B. Provine and published by University of Chicago Press. This book was released on 1989-04-13 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Provine's thorough and thoroughly admirable examination of Wright's life and influence, which is accompanied by a very useful collection of Wright's papers on evolution, is the best we have for any recent figure in evolutionary biology."—Joe Felsenstein, Nature "In Sewall Wright and Evolutionary Biology . . . Provine has produced an intellectual biography which serves to chart in considerable detail both the life and work of one man and the history of evolutionary theory in the middle half of this century. Provine is admirably suited to his task. . . . The resulting book is clearly a labour of love which will be of great interest to those who have a mature interest in the history of evolutionary theory."-John Durant, ;ITimes Higher Education Supplement;X