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Author : Bernard John
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (623 download)
Download or read book The Chromosome Complement, By B. John and K.R. Lewis written by Bernard John and published by . This book was released on 1968 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernard John
Publisher : Springer Science & Business Media
ISBN 13 : 3709157811
Total Pages : 211 pages
Book Rating : 4.7/5 (91 download)
Download or read book The Chromosome Complement written by Bernard John and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence determines the specificity of proteins. And enzyme proteins are immediately responsible for the peripheral metabolism which enables the organism to impose its own kind of order on the raw materials it absorbs. The course of development is determined not only by the nature of the genetic material but by its over-all amount and the relative frequency of the different functional units. Differential rates of epigenetic activity matter also. In theory, therefore, differential development within or even between individuals could be determined by the differential replication of the various genetic elements or by their differential activity. And further variation could arise by the differential transmission of these elements between cells. Indeed it would appear that all these possibilities are exploited by living systems. If like is to beget like, however, any genetic change which occurs during development must be undone, or else germinal units preserved from change must be set aside. As far as is known, genetic changes, even those involving only quantity or relative amounts, are reversible to only a very limited extent so that a change once done cannot be undone. Consequently genetic changes during the development of presumptive germ-lines are either non existant or minor and confined to a small class of un aggregated deter minants.
Author :
Publisher :
ISBN 13 :
Total Pages : 794 pages
Book Rating : 4.3/5 (91 download)
Download or read book Protoplasmatologia: Kern- und Zellteilung. A. The chromosome complement, by B. John and K. R. Lewis. B. The chromosome cycle, by B. John and K. R. Lewis. C. Endomitose und endomitotische Polyploidisierung, von L. Geitler. D. Riesenchromosomen, von W. Beermann. E. Amitose. 1. Die Amitose der tierischen und menschlichen Zelle, von O. Bucher. F1. Meiotic system. F2. Les altérations de la méiose chez les animaux parthenogénétiques, par M. Narbel-Hofstetter. F3. Fortpflanzungsmodus und Meiose apomiktischer Blütenpflanzen, von A. Rutishauser. G. Der Kernteilungsmechanismus. 1. The behavior of centrioles written by and published by . This book was released on 1968 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher : Academic Press
ISBN 13 : 0080585604
Total Pages : 417 pages
Book Rating : 4.0/5 (85 download)
Download or read book International Review of Cytology written by and published by Academic Press. This book was released on 1968 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Review of Cytology
Author : J. Schulz-Schaeffer
Publisher : Springer Science & Business Media
ISBN 13 : 1461260604
Total Pages : 453 pages
Book Rating : 4.4/5 (612 download)
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.
Author : Daniel Branton
Publisher : Springer Science & Business Media
ISBN 13 : 3709156009
Total Pages : 78 pages
Book Rating : 4.7/5 (91 download)
Download or read book Membrane Structure written by Daniel Branton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernard John
Publisher : Springer Science & Business Media
ISBN 13 : 3709155908
Total Pages : 132 pages
Book Rating : 4.7/5 (91 download)
Download or read book The Chromosome Cycle written by Bernard John and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: neoessity for making it. Yet, clearly, the problem of development is largely one of filling "the vacuum between determinant and character" (DARLINGTON 1951). Nowadays the chromosome theory can be presented in much greater detail and with utter confidence, but its two main features remain the same. However, while the role of the chromosomes in heredity and development has been appreciated for a long time, the manner in which they perform their genetic and epigenetic functions has become amenable to critical investigation only in recent years. There is, therefore, still an unmistakable tendency to think of chromosomes in terms of the discrete threads of cell division and, in keeping with this conception, the chromosome cycle is gen erally considered in relation to the microscopically visible changes in morphology which occur during the mechanically active phases of mitosis and meiosis. Chromosome phenotype, however, changes not only during division but throughout the cell cycle. The changes which occur during interphase are, of course, scarcely revealed in morphological modifications of the restless "resting" nucleus. Consequently they are less obvious and correspondingly less amenable to investigation. This accounts for the concentration on the countable karyotype, with its visible properties of pairing and pycnosity, and the measurable movements of separation and segregation.
Author : F. D'amato
Publisher : CUP Archive
ISBN 13 : 9780521215084
Total Pages : 314 pages
Book Rating : 4.2/5 (15 download)
Download or read book Nuclear Cytology in Relation to Development written by F. D'amato and published by CUP Archive. This book was released on 1977-09-08 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Folia Biologica written by and published by . This book was released on 1992 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Srivastava
Publisher : Springer Science & Business Media
ISBN 13 : 1402032137
Total Pages : 411 pages
Book Rating : 4.4/5 (2 download)
Download or read book Plant Biotechnology and Molecular Markers written by S. Srivastava and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genesis of the volume, Plant Biotechnology and Molecular Markers, has been the occasion of the retirement of Professor Sant Saran Bhojwani from the Department of Botany, University of Delhi. For Professor Bhojwani, retirement only means relinquishing the chair as being a researcher and a teacher which has always been a way of life to him. Professor Bhojwani has been an ardent practitioner of modern plant biology and areas like Plant Biotechnology and Molecular Breeding have been close to his heart. The book contains original as well as review articles contributed by his admirers and associates who are experts in their area of research. While planning this contributory book our endeavour has been to incorporate articles that cover the entire gamut of Plant Biotechnology, and also applications of Molecular Markers. Besides articles on in vitro fertilization and micropropagation, there are articles on forest tree improvement through genetic engineering. Considering the importance of conservation of our precious natural wealth, one article deals with cryopreservation of plant material. Chapter on molecular marker considers DNA indexing as markers of clonal fidelity of in vitro regenerated plants and prevention against bio-piracy. A couple of write-ups also cover stage-specific gene markers, DNA polymorphism and genetic engineering, including raising of stress tolerant plants to sustain productivity and help in reclamation of degraded land.
Author : F.C. Steward
Publisher : Elsevier
ISBN 13 : 0323159303
Total Pages : 247 pages
Book Rating : 4.3/5 (231 download)
Download or read book Plants, Chemicals and Growth written by F.C. Steward and published by Elsevier. This book was released on 2012-12-02 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants, Chemicals and Growth focuses on chemicals that regulate the growth and development of plants. It explores the problems of growth and growth regulation by looking at the roles of chemical substances, natural and synthetic, which affect the behavior of the cells of flowering plants. It also describes the variety of responses triggered by such chemicals, which include herbicides, those that stimulate the rooting of cuttings or cause leaf or fruit abscission, and those associated with fruit setting and artificial parthenocarpy. Comprised of 10 chapters, this volume begins with an overview of examples of chemical regulators and the biological responses they induce in plants, from tropism and chemotropism to nastic responses; rhythmic phenomena in growth and development; initiation of lateral organs and problems of phyllotaxy; periodicities in growth; and effects on the balance between vegetative growth, flowering, and fruiting. It discusses the totipotency and exogenous regulation of cells, history and modern concepts of plant growth regulators, the ways chemicals induce growth in quiescent cells, and growth-regulating effects in free cell systems. The reader is also introduced to biologically active compounds, such as indolyl and triazine compounds; how plant-regulating substances work; concepts and interpretations of plant growth regulation; and problems and prospects of chemical regulation of plant growth and development. This book will be of interest to teachers, biology students, agriculturalists, and researchers.
Author : F.C. Steward
Publisher : Elsevier
ISBN 13 : 032315929X
Total Pages : 247 pages
Book Rating : 4.3/5 (231 download)
Download or read book Plant, Chemicals and Growth written by F.C. Steward and published by Elsevier. This book was released on 2012-12-02 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants, Chemicals and Growth investigates natural and synthetic chemicals that control plant growth and development. It examines how plant growth regulators, such as 2,4-D, 2,4-dichlorophenoxyacetic acid, 2,4,5-T, 2,4,5-trichlorophenoxyacetic acid, ammonium sulfamate, indole-3-butyric acid, disodium 3,6-endoxohexahydrophthalate, gibberellic acid, and 2-chloroethyltrimethylammonium chloride, induce biological responses in plants. These responses range from tropism and chemotropism to growth of organs by cell division and enlargement, rhythmic phenomena in growth and development, initiation of lateral organs and problems of phyllotaxy, and the regulatory effects of light and temperature on growth and form. Comprised of 10 chapters, this volume begins with an overview of chemical regulators and the ways in which they elicit biological responses in plants; how chemical regulation of plants is related to the growth and development of flowering plants; cell growth and cell division; cell cycle; and cellular ontogeny. It then looks at the history and modern concepts of growth-regulating compounds, such as auxins, cytokinins, and gibberellins. The book introduces readers to how chemicals induce growth in quiescent cells; natural sources of growth stimulatory substances; synergisms and interactions of growth regulatory systems; growth-regulating effects in free cell systems; examples of biologically active compounds; the mechanisms of action of plant growth regulators; concepts and interpretations of plant growth regulation; and prospects and problems associated with chemical regulation of plant growth and behavior. Teachers, biology students, agriculturalists, and researchers will find this book extremely useful.
Author : M. Alfert
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (299 download)
Download or read book Band VI Kern- und Zellteilung, A The Chromosome Complement/B. John, K. R. Lewis written by M. Alfert and published by . This book was released on 1968 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 642 pages
Book Rating : 4.:/5 (321 download)
Download or read book The National Union Catalogs, 1963- written by and published by . This book was released on 1964 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 648 pages
Book Rating : 4.3/5 (91 download)
Download or read book National Union Catalog written by and published by . This book was released on 1973 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.
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Publisher :
ISBN 13 :
Total Pages : 1380 pages
Book Rating : 4.:/5 (319 download)
Download or read book Pure and Applied Science Books, 1876-1982 written by and published by . This book was released on 1982 with total page 1380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 220,000 entries representing some 56,000 Library of Congress subject headings. Covers all disciplines of science and technology, e.g., engineering, agriculture, and domestic arts. Also contains at least 5000 titles published before 1876. Has many applications in libraries, information centers, and other organizations concerned with scientific and technological literature. Subject index contains main listing of entries. Each entry gives cataloging as prepared by the Library of Congress. Author/title indexes.
Author : A. Beaumont
Publisher : Springer Science & Business Media
ISBN 13 : 9780412493706
Total Pages : 566 pages
Book Rating : 4.4/5 (937 download)
Download or read book Genetics and Evolution of Aquatic Organisms written by A. Beaumont and published by Springer Science & Business Media. This book was released on 1994-03-31 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together, for the first time, a wide range of up-to-the-minute and traditional techniques and approaches to the study of genetics of organisms living in freshwater or marine habitats. Carefully edited chapters are headed by broad review articles against which are set a number of more specific experience papers which demonstrate the breadth and range of approaches currently being undertaken.
