The Whole Life Cycle of Chromosomes and Their Coiling Systems
The Whole Life Cycle of Chromosomes and Their Coiling Systems

Author: L. R. Cleveland

Publisher: American Philosophical Society

Published: 1949

Total Pages: 148

ISBN-13: 9781422377079

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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.

The Whole Life Cycle of Chromosomes and Their Coiling Systems
The Whole Life Cycle of Chromosomes and Their Coiling Systems

Author: L. R. Cleveland

Publisher: American Philosophical Society

Published: 1949

Total Pages: 148

ISBN-13: 9781422377079

DOWNLOAD EBOOK

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.

The Meiotic System
The Meiotic System

Author: Bernard John

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 340

ISBN-13: 370915748X

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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.

Premature Chromosome Condensation
Premature Chromosome Condensation

Author: P.N. Rao

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 400

ISBN-13: 0323152155

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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.

Reproduction: Molecular, Subcellular, and Cellular
Reproduction: Molecular, Subcellular, and Cellular

Author: Michael Locke

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 365

ISBN-13: 032315431X

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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.

Apoptotic Chromatin Changes
Apoptotic Chromatin Changes

Author: Gaspar Banfalvi

Publisher: Springer Science & Business Media

Published: 2009-02-24

Total Pages: 420

ISBN-13: 1402095619

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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.

Protozoology
Protozoology

Author: Karl Gottlieb Grell

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 563

ISBN-13: 3642619584

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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.