Download or read book The Whole Life Cycle of Chromosomes and Their Coiling Systems written by Lemuel Roscoe Cleveland and published by American Philosophical Society. This book was released on 1949 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromosomes play so important a role in heredity & development that it is desirable to know their entire life cycle since this knowledge will provide a basis for better understanding of their behavior. Contents of this study: Introduction; The genus "Holomastigotoides"; Species of "Holomastigotoides" in "Prorhinotermes"; "Holomastigotoides tusitala" species novum; "Holomastigotoides diversa" species novum; Centrioles & achromatic figure; Relation of chromosomes to nucleoli; Relation of chromosomes to nuclear membrane; Single chromatids; Double chromatids; Discussion; Summary; & References. 35 plates. This is a print on demand edition of an important, hard-to-find publication.
Download or read book The Whole Life Cycle of Chromosomes and Their Coiling Systems written by Lemuel Roscoe Cleveland and published by . This book was released on 1949 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Meiotic System written by Bernard John and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction When the study of heredity and variation first came to be treated as a scientific subject-and this, one must remember, was only just over a hundred years ago-there was an unfortunate separation between the disciplines of cytology and experimental breeding. This separation was based partly on a lack of understanding and partly on a lack of the desire to understand. Even WILLIAM BATESON, the first apostle of mendelism in England, had a blind spot for cytology and for many years dogmatically refused to believe that MENDEL'S determinants were transmitted and distributed by the chromosomes. This separation between cytology and experimental breeding is one which persists, in a measure, even today, simply because there are two quite different, though complementary, techniques available for the study of heredity and variation. On the one hand, one can study directly the structure and behaviour of the actual vehicles which transmit the genetic determinants from one generation to the next. This is the method employed by those who study genetics through a microscope. The alternative method is that used by the experimental breeder who, in default of being able to watch the hereditary factors segregate from each other directly, is obliged to examine the constitution of the germ cells indirectly by sampling, and usually at random, the products of a controlled mating.
Download or read book Premature Chromosome Condensation written by P.N. Rao and published by Elsevier. This book was released on 2012-12-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Premature Chromosome Condensation: Application in Basic, Clinical, and Mutation Research emerged from a workshop supported by the International Union against Cancer that reviewed the status of research on premature chromosome condensation and explored future possibilities, not least in relation to cancer. The workshop was held at the Institut für Humangenetik, Freie Universität Berlin, on September 6, 1980. The book begins with a review of the process of premature chromosome condensation. This is followed by separate chapters on the functional and morphological aspects of premature chromosome condensation; the behavior of prematurely condensed chromosomes (PCC) during mitosis in binucleate and multinucleate cells; chromosomes from spermatogenic cells; and micronucleus-derived PCC. Subsequent chapters discuss the application of banding techniques to the study of PCC; the factors involved in the condensation of interphase chromatin into chromosomes; and the induction of premature chromosome condensation in somatic plant cells. This book will be helpful to readers working in basic and applied research or in teaching. These include cytogeneticists, cell biologists, biochemists, and investigators in the field of mutation research.
Download or read book Reproduction Molecular Subcellular and Cellular written by Michael Locke and published by Elsevier. This book was released on 2012-12-02 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproduction: Molecular, Subcellular, and Cellular is a collection of papers presented at the Twenty-Fourth Symposium of The Society for Developmental Biology, held at Carleton, Minnesota in June 1965. The papers in the compendium focus on the clarification and definition of specific aspects of reproduction at different levels of biological organization. Topics discussed include the transcription and translation of genes; interactions between plant viruses and host cells; chromosome reproduction in mitosis and meiosis; cell and tissue interactions in the reproduction of cell type; and aging as a consequence of growth cessation. Biologists, microbiologists, and cytologists will find the book insightful.
Download or read book Apoptotic Chromatin Changes written by Gaspar Banfalvi and published by Springer Science & Business Media. This book was released on 2009-02-24 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The writing of this book is based on: 1. earlier experience writing textbooks for biology students with a university-level background in biology and biochemistry with many (>200) ?gures in these books (in Hungarian), 2. and on the necessity to present university lectures as power point presentations to catch the interest of s- dents. The author realizes that young readers who were grown up in an information society are relactant to read too much unless they have to take exams. Even then they prefer books which contain illustrations for a better understanding. In collaboration with colleagues, referees and members of the publishing staff an extensive set of photographs and illustrations were collected to provide a graphic follow-up to the text. Further aids for the student, instructor and the curious reader are provided by summaries, extensive sets of readings and references for each chapter, a glossary of the terms, list of abbreviations and a DVD with a red-blue eyeglass to visualize three dimensional chromatin structures. The reader could ask: Why another book on apoptosis? The answer to the question is related to the de?nition of the process. The term apoptosis has been introduced to describe typical morphological changes leading to controlled se- destruction of cells. The ?rst demonstrated biochemical feature of this type of cell death was internucleosomal fragmentation, which was occasionally preceded by the generation of large DNA fragments.
Download or read book Proceedings of the National Academy of Sciences of the United States of America written by National Academy of Sciences (U.S.) and published by . This book was released on 1915 with total page 1268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Proceedings of the National Academy of Sciences (PNAS) publishes research reports, commentaries, reviews, colloquium papers, and actions of the Academy. PNAS is a multidisciplinary journal that covers the biological, physical, and social sciences.
Download or read book Protozoology written by Karl Gottlieb Grell and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: When I prepared the first German edition of this book in 1955, it was my intention to acquaint biologists in my country with the new and exciting results being obtained on the other side of theAtlantic Ocean (incl. the English Channel). In the meantime, especially after publication of the second German edition in 1968, Dr. Konrad F. Springer and many colleagues, too, suggested that I should prepare an English version. Though this was the exact opposite of my original intention, I finally agreed despite the risks involved. Since 1968 our knowledge in Protozoology increased considerably. Though I tried to concentrate the text as much as possible, an enlargement of up to pages 554 was unavoidable. Many figures have been changed, replaced and added. Altogether their number increased from 422 to 437. In my opinion, it is only a matter of time before the "true" protozoologists dis appear. There will be cell biologists, biochemists, geneticists and others working with certain Protozoa, but very few who are interested in the group as a whole, their morphological and physiological diversity, their various types of reproduction and their relationships to other groups of organisms. Even at the present time, the Society of Protozoologists, comprising more than thousand members, consists for the most part of specialists who concentrate their efforts specifically upon Chlamy domonas, Amoeba, Plasmodium, Tetrahymena or some other protozoans.
Download or read book Glossary of Genetics and Cytogenetics written by R. Rieger and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: In preparing the new completely revised edition of this glossary, which in the meantime has been translated into Russian and Polish, we have attempt ed to include the most important new terms and to revise the text in those cases where new data demanded it*. As a result about fifty percent of the text is completely rewritten. Once more we have tried to provide material suitable and usable both for students and research workers. Accordingly, depending upon our evaluation, some terms have been simply defined, others have been described at some length even to the extent of providing experi mental data. Wherever possible, synonymy and redundancy have been pointed out, and in the interest of historical accuracy the individual respon sible for introducing a particular term or concept listed with the specific paper included in the literature citations. Cross references between related terms are designated by an arrow (---*) before each relevant term. To keep the book, as far as possible, to a reasonable size the terms carried over from the earlier edition have once more been critically selected and, where necessary, revised. In spite of these efforts a certain increase in volume was unavoidable. We hope that the new edition will once more prove useful to a wide audience and enjoy the same cordial reception as the earlier ones. Comments and suggestions from the reviewers and users of the earlier editions have contribut ed signifiClllltly to the revision.
Download or read book Transactions of the American Philosophical Society written by American Philosophical Society and published by . This book was released on 1961 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Held at Philadelphia for promoting useful knowledge.
Download or read book A Glossary of Genetics and Cytogenetics written by R. Rieger and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past two decades have witnessed a truly phenomenal growth and expansion in our knowledge of the principles and mechanisms of in heritance. :\iolecular and microbial genetics, for all purposes non-existent at the outset of this period, have developed and flourished to the extent of becoming major branches of genetics from which the most exciting and edifying concepts of gene function and structure have been derived. Similarly, man, heretofore a genetic curiosity, has become in his own right a genetic organism of first rank importance. It is, therefore, not without reason that accompanying the rapid proliferation of genetic knowledge, a parallel increase has occurred in the technical nomen clature and terminology special to the field of genetics and often special to specific branches of genetics. In preparing this glossary of ca. 2500 entries, we have attempted to compile and collate the terminology from seemingly unrelated, widely separated branches of genetics - classical and molecular; microbial and human; cytogenetics and population genetics. We have not been content merely to collect terms and definitions much as is found in a dictionary. Rather our aim has been to provide material suitable and usable both for students and research workers. Accordingly, depending upon our evaluation, some terms have simply been defined, others have been described at some length even to the extent of providing experi mental data.
Download or read book Origins of Sex written by Lynn Margulis and published by Yale University Press. This book was released on 1990-01-01 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fascinating and detailed examination of the evolution--and occasional devolution--of sexuality in microorganisms and more complex forms of life. Margulis and Sagan trace sex from its inauspicious beginnings in bacteria threatened by ultraviolet radiation to its intimate relation with the origin of mitotic division of nucleated cells. The origin of meiotic sex through cannibalism followed by centriole reproductive tardiness and the connection of cell symbiosis to sex and differentiation are explored. "The authors have not only given us a new and exiting scenario for the evolution of sex, but have also provided us with critical ways in which we can test their hypotheses. . . . This is a stimulating book that is sure to invoke criticism and discussion; I strongly recommend it."--Symbiosis "The book is well organized and well written, leading the reader from one thought to another almost effortlessly. Background information is presented to aid those of us who are not experts in this field, and a glossary is appended. The book could be used at all levels of study, from interested undergraduates in general biology though postdoctoral students of genetics and evolution. I recommend this thought-provoking book to you for both your enjoyment and your enlightenment."--Richard W. Cheney, Jr., Journal of College Science Teaching "This book, undoubtedly controversial, is a thoughtful and original contribution to an important aspect of cellular biology."--John Langridge
Download or read book Cytogenetics written by J. Schulz-Schaeffer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1961 the author has taught a course in Cytogenetics at Montana State University. Undergraduate and graduate stu dents of Biology, Chemistry, Microbiology, Animal and Range Science, Plant and Soil Science, Plant Pathology and Veterinary Science are enrolled. Therefore, the subject matter has been pre sented in an integrated way to correlate it with these diverse disciplines. This book has been prepared as a text for this course. The most recent Cytogenetics text was published in 1972, and rapidly developing research in this field makes a new one urgently needed. This book includes many aspects of Cytogenetics and related fields and is written for the college student as well as for the researcher. It is recommended that the student should have taken preparatory courses in Principles of Genetics and Cytol ogy. The content is more than is usually taught during one quar ter of an academic year, thus allowing an instructor to choose what he or she would like to present to a class. This approach also allows the researcher to obtain a broad exposure to this field of biology. References are generously supplied to stimulate orig inal reading on the subject and to give access to valuable sources. The detailed index is intended to be of special assistance to researchers.
Download or read book Life of Julius Caesar Scaliger 1484 1558 written by and published by American Philosophical Society. This book was released on 2007-12 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a certain Mark Anthony of the famous Italian family of the Roveres arrived in Agen, in SW France, in the second decade of the 16th century, he brought along with him his personal physician, Master Julius Caesar, who had been under the protection of his family for some time. This latter was a majestic-looking man of some 40 years of age who was to become renowned as one of the greatest scholars of the Renaissance. Indeed, so great became his fame in all branches of learning that it was for long considered that he was the greatest scholar who had ever dwelt in France. This study provides all the important things known about the life of Julius Caesar Scaliger (1484-1558). This is a print on demand publication.
Download or read book Life of Julius Caesar Scaliger 1484 1558 written by and published by American Philosophical Society. This book was released on 2007-12 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a certain Mark Anthony of the famous Italian family of the Roveres arrived in Agen, in SW France, in the second decade of the 16th century, he brought along with him his personal physician, Master Julius Caesar, who had been under the protection of his family for some time. This latter was a majestic-looking man of some 40 years of age who was to become renowned as one of the greatest scholars of the Renaissance. Indeed, so great became his fame in all branches of learning that it was for long considered that he was the greatest scholar who had ever dwelt in France. This study provides all the important things known about the life of Julius Caesar Scaliger (1484-1558). This is a print on demand publication.
Download or read book Modern Genetic Analysis written by Anthony J.F. Griffiths and published by Macmillan. This book was released on 2002-02-22 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Genetic Analysis, Second Edition, the second introductory genetics textbook W.H. Freeman has published by the Griffiths author team, implements an innovative approach to teaching genetics. Rather than presenting material in historical order, Modern Genetic Analysis, Second Edition integrates molecular genetics with classical genetics. The integrated approach provides students with a concrete foundation in molecules, while simultaneously building an understanding of the more abstract elements of transmission genetics. Modern Genetic Analysis, Second Editionalso incorporates new pedagogy, improved chapter organization, enhanced art, and an appealing overall design.
Download or read book Biographical Memoirs written by National Academy of Sciences and published by National Academies Press. This book was released on 1980-02-01 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biographic Memoirs: Volume 51 contains the biographies of deceased members of the National Academy of Sciences and bibliographies of their published works. Each biographical essay was written by a member of the Academy familiar with the professional career of the deceased. For historical and bibliographical purposes, these volumes are worth returning to time and again.
