Contributions to the Genetics, Taxonomy, and Ecology of Drosophila Pseudoobscura and Its Relatives PDF Download
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Author: Theodosius Dobzhansky
Publisher:
ISBN:
Category : Diptera
Languages : en
Pages : 206
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Book Description
Author: Theodosius Dobzhansky
Publisher:
ISBN:
Category : Diptera
Languages : en
Pages : 206
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Book Description
Author: Carnegie Institution of Washington
Publisher:
ISBN:
Category : Drosophila
Languages : en
Pages : 0
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Book Description
Author: Theodosius Dobzhansky
Publisher:
ISBN:
Category : Diptera
Languages : en
Pages : 204
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Book Description
Author:
Publisher: University of Pennsylvania Press
ISBN: 0871692902
Category :
Languages : en
Pages : 204
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Book Description
Author: Theodosius Dobzhansky
Publisher: Columbia University Press
ISBN: 9780231083065
Category : Computers
Languages : en
Pages : 524
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Book Description
The world's foremost geneticist surveys the major developments in what is emerging as the most important single area of scientific inquiry in the twentieth century: biological theory of evolution.
Author: Max K. Hecht
Publisher: Springer Science & Business Media
ISBN: 1461569621
Category : Science
Languages : en
Pages : 308
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Book Description
The first volume of Evolutionary Biology was published thirteen years ago. Since that time thirteen volumes and one supplement have appeared. As stated in earlier prefaces, we are continuing the focus of this series on critical reviews, commentaries, original papers, and controversies in evolu tionary biology. It is our aim to publish papers primarily of greater length than normally published by society journals and quarterlies. We therefore invite colleagues to submit chapters that fall within the focus and standards of Evolutionary Biology. The editors regretfully announce that Dr. William C. Steere has decided to withdraw from the editorial board of Evolutionary Biology. Dr. Ghillean T. Prance will replace Dr. Steere for forthcoming volumes. 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 Genetics, Cornell University, Ithaca, New York 14850; Ghillean T. Prance, New York Botanical Garden, Bronx, New York 10458. The Editors vii Contents 1. Some Relationships between Density-Independent Selection and Density-Dependent Population Growth Timothy Prout Introduction ............................................ . Part I. The Basic Model: Definitions, Assumptions, and Relationships .................................... 3 Part II. Biological Aspects. . . . . . . . . . . . . . . . . . . . . . . . 10 . . . . . . . . . Introduction ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 . . . . . . . . . . . The Biological Interpretation of the Model. . . . . . . . . . . . . . 10 . . . . Experimental and Observational Aspects. . . . . . . . . . . . . . . 13 . . . . Part III. Census-Stage Theory. . . . . . . . . . . . . . . . . . . . . . 22 . . . . . . . . Introduction ...... . . . . . . . . . . . . . . . . . . . . . . . . . . 22 . . . . . . . . . . . Two-Point Census ...................................... 23 Three-Point Census: Classical Selection .. . . . . . . . . . . . . .. . . 42 . . . Summary of Two-and Three-Point Censuses. . . . . . . . . . . . . 50 . . . Part IV. Summary and Some Implications. . . . . . . . . . . . . . . . 52 . . . . Summary.............................................. 52 Some Implications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 . . . . . . . . . . Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 . . . . . . . . . . . . . . References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 . . . . . . . . . . . . . .
Author: Francisco J. Ayala
Publisher: JHU Press
ISBN: 1421413051
Category : Science
Languages : en
Pages : 572
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Book Description
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.
Author: Benoit Godin
Publisher: Psychology Press
ISBN: 9780415328494
Category : History
Languages : en
Pages : 264
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Book Description
Governments and researchers from industrial countries have been measuring science and technology for more than seventy years. This book provides an historical examination of official science and technology statistics and indicators in Western countries and addresses the following questions: What were the main historical moments that led to the development of statistics on science and technology? What were the main socio-political stakes behind the activities of science measurement? What were the philosophical and ideological conceptions that drove measurement? What statistics and indicators were developed and how were they constructed? The first part of the book concentrates on the construction and development of science and technology statistics from 1930 to the present, the principles at work, and the vested interests and forces behind that construction. The second part analyzes to what uses statistics were put, and with how much confidence actors used statistics to document their case or to promote their political agenda.
Author: for the National Academy of Sciences
Publisher: National Academies Press
ISBN: 0309552672
Category : Science
Languages : en
Pages : 336
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Book Description
Since George Gaylord Simpson published Tempo and Mode in Evolution in 1944, discoveries in paleontology and genetics have abounded. This volume brings together the findings and insights of today's leading experts in the study of evolution, including Ayala, W. Ford Doolittle, and Stephen Jay Gould. The volume examines early cellular evolution, explores changes in the tempo of evolution between the Precambrian and Phanerozoic periods, and reconstructs the Cambrian evolutionary burst. Long-neglected despite Darwin's interest in it, species extinction is discussed in detail. Although the absence of data kept Simpson from exploring human evolution in his book, the current volume covers morphological and genetic changes in human populations, contradicting the popular claim that all modern humans descend from a single woman. This book discusses the role of molecular clocks, the results of evolution in 12 populations of Escherichia coli propagated for 10,000 generations, a physical map of Drosophila chromosomes, and evidence for "hitchhiking" by mutations.
Author: Pranveer Singh
Publisher: Springer
ISBN: 8132225651
Category : Science
Languages : en
Pages : 117
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Book Description
This book introduces readers to classical population genetics and the ways in which it can be applied to practical problems, including testing for natural selection, genetic drift, genetic differentiation, population structuring, gene flow and linkage disequilibrium. It provides a comprehensive monograph on the topic, addressing the theory, applications and evolutionary deductions, which are clearly explained using experimental results. It also offers separate chapters on origin, establishment and spread of chromosomal aberrations in populations along with details of culturing, maintaining and using Drosophila ananassae (genetically unique and the most commonly used species along with D. melanogaster) for genetic research. Encompassing topics like genetics, evolution, Drosophila genetics, population genetics, population structuring, natural selection and genetic drift in considerable detail, it provides a valuable resource to undergraduate and postgraduate students, as well as researchers at all level. This book explores some fundamental questions concerning the role of natural selection and genetic drift on the degree of inversion polymorphism. India, with its wide diversity in geo-climatic conditions, provides an excellent platform to conduct such studies. The book showcases sampling records of inversion frequencies in natural Indian populations of D. ananassae that cover more than two decades. It highlights case studies in which sampling data on inversion frequencies was combined with that from earlier surveys, generating a time series that allows the evolutionary dynamics of inversion polymorphism to be explored. Such long time series are rare but nonetheless crucial for studying the evolutionary dynamics of inversion polymorphism. The population-genetic analysis discussed is unprecedented in terms of its temporal (two decades) and spatial (most regions of India covered) scale and investigates the patterns of polymorphic system in D. ananassae to see if there is any temporal divergence. It endeavors to present a holistic picture of inversion polymorphism across the country (India). Chromosomal aberrations, particularly paracentric inversions, are used as a tool for discussing population genetic studies, helping human geneticists, gynecologists and other medical professionals understand why some aberrations are fatal in humans, with affected embryos often not surviving the first trimester of pregnancy, while similar aberrations in Drosophila flies aid in their adaptation to the environmental heterogeneity across the globe.
