Some Aspects Of Chromosome Structure And Function
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Some Aspects Of Chromosome Structure And Function
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Author : R.C. Sobti
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Some Aspects Of Chromosome Structure And Function written by R.C. Sobti and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
It was at the end of the 19th century that a Swiss biologist, Karl Nageli first proposed the existence of hereditary organelles that carried information from parent to offspring. Ensuing decades experienced vigorous studies that led to the development of discovery that chromosomes are indeed the carriers of genetic information. Subsequent studies, especially by Morgan and Bridges, established unequivocally the chromosome theory of inheritance. Today, the structure of chromosome is well established. At the physical level, eukaryotic chromosomes are composed of a single, linear, double helix of DNA. The elementary helical structure involves nucleosomes, comprised of histones around which the DNA is wrapped. A hierarchy of higher order of chromosomal architecture may possibly be responsible for the regulation of gene helical structures expression. The localized condensations of DNA constitute chromomeres. Uncoiled structures sometimes extending from chromomeres, which form loops, is the result of discontinuities in the regular coiling of the DNA in the chromosome.
Chromosome Structure And Function
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Author : Andreas Houben
language : en
Publisher: Springer My Copy UK
Release Date : 2009
Chromosome Structure And Function written by Andreas Houben and has been published by Springer My Copy UK this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Aufsatzsammlung categories.
Our understanding of the function and structure of chromosomes and their interrelationship has grown in recent years. The chapters in this issue describe the advances that have been made possible by combining microscope techniques with sophisticated biochemical and genetic approaches to unlock the secrets of chromosomes. The authors look at many aspects of chromosome biology, such as protein, DNA and RNA composition of chromosomes, defined chromosome structures, unusual chromosome structures and specialized chromosomes and microscope tools for chromosome analysis. 'Chromosome Structure and Function' will be an invaluable resource for undergraduate and postgraduate students in fields such as plant and animal sciences, genetics, and molecular biology. In fact, any student, teacher or researcher interested in chromosome biology will find this special issue indispensable.
Chromosomes
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Author : Adrian T. Sumner
language : en
Publisher: John Wiley & Sons
Release Date : 2008-04-30
Chromosomes written by Adrian T. Sumner and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-30 with Science categories.
Integrating classical knowledge of chromosome organisation with recent molecular and functional findings, this book presents an up-to-date view of chromosome organisation and function for advanced undergraduate students studying genetics. The organisation and behaviour of chromosomes is central to genetics and the equal segregation of genes and chromosomes into daughter cells at cell division is vital. This text aims to provide a clear and straightforward explanation of these complex processes. Following a brief historical introduction, the text covers the topics of cell cycle dynamics and DNA replication; mitosis and meiosis; the organisation of DNA into chromatin; the arrangement of chromosomes in interphase; euchromatin and heterochromatin; nucleolus organisers; centromeres and telomeres; lampbrush and polytene chromosomes; chromosomes and evolution; chromosomes and disease, and artificial chromosomes. Topics are illustrated with examples from a wide variety of organisms, including fungi, plants, invertebrates and vertebrates. This book will be valuable resource for plant, animal and human geneticists and cell biologists. Originally a zoologist, Adrian Sumner has spent over 25 years studying human and other mammalian chromosomes with the Medical Research Council (UK). One of the pioneers of chromosome banding, he has used electron microscopy and immunofluorescence to study chromosome organisation and function, and latterly has studied factors involved in chromosome separation at mitosis. Adrian is an Associate Editor of the journal Chromosome Research, acts as a consultant biologist and is also Chair of the Committee of the International Chromosome Conferences. The most up-to-date overview of chromosomes in all their forms. Introduces cutting-edge topics such as artificial chromosomes and studies of telomere biology. Describes the methods used to study chromosomes. The perfect complement to Turner.
Chromosome Structure And Function
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Author : Rudi Appels
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Chromosome Structure And Function written by Rudi Appels and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
A Historical Perspective on the Study of Chromosome Structure and Function R. Appels Division of Plant Industry CSIRO P.O. Box 1600 A.C.T. AUSTRALIA "Modern physical science gives us no model to explain the re duplication of the gene-string in each cell generation, or to ex plain the production of effective quantities of specific enzymes or other agents by specific genes. The precise pairing and inter change of segments by homologous gene-strings at meiosis also suggest novel physical properties of this form of matter". Stadler (1954) The very strong influence of reductionism in the history of understanding chromosome structure and function is evident in the above quotation from Stadler's 1954 paper, "The gene". Earlyob servations on the constancy of the cytological appearance of chromo somes and their regular behaviour in cell division led to specula tion on their biological importance. As genetics became more refined in the early decades of the 20th century the genes-on-a string model of chromosomes developed and greater emphasis was placed on the further dissection of these structures. As a result, in the 1980's the reductionist approach is reaching a crest as extensive regions of the genetic material are being sequenced.
Chromosome Structure And Function
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Author : Michael S. Risley
language : en
Publisher:
Release Date : 1986
Chromosome Structure And Function written by Michael S. Risley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.
Molecular Biology Of The Cell
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Author : Bruce Alberts
language : en
Publisher:
Release Date : 2002
Molecular Biology Of The Cell written by Bruce Alberts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Cytology categories.
Molecular Biology Of Chromosome Function
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Author : Kenneth W. Adolph
language : en
Publisher: Springer
Release Date : 1989-09-18
Molecular Biology Of Chromosome Function written by Kenneth W. Adolph and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-09-18 with Science categories.
Chromosomes have structure, determined by the interactions of proteins with DNA, and chromosomes have functions, in particular, replication of DNA and transcription of messenger RNA. Chromosome structure and function are not separate topics, since chromosome organization pro foundly influences the activity of the genome in replication and transcrip tion. This is especially clear for higher cells, including human cells, in which chromatin fibers are created by the binding of histone proteins to the DNA, and folding of the fibers produces mitotic chromosomes and interphase nuclei. The intricate organization of DNA in higher cells is now recognized as being closely involved with genome activity. Many fundamental results have originated from studies of bacterial and viral systems, which have been systems of choice because of their less complex life cycles. The processes of replication and transcription show differences between the higher and simpler systems (e. g. , different enzymes and protein factors are involved). But the parallels are as striking as the differences in detail. Even for bacteria and viruses, a full understanding of these processes will require integrating the results of molecular biology with those of structural biology and cell biology. Three important subjects are covered in this volume: DNA replication and recombination, gene transcription, and chromosome organization. The sections dealing with replication and transcription examine recent results obtained by applying the techniques of molecular biology and biochemistry. Eukaryotic, prokaryotic, and viral systems are discussed.
Structure And Function Of Eukaryotic Chromosomes
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Author : Wolfgang Hennig
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Structure And Function Of Eukaryotic Chromosomes written by Wolfgang Hennig and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
This book presents an overview of various aspects of chromosome research, written by leading experts of the respective fields, combining classic and recent molecular biological results. The variety and comprehensiveness make it a handbook of chromosome research for all scientists, teachers and graduate students interested in this field. Dieses Buch faßt die unterschiedlichen Aspekte der Chromosomenforschung in Beiträgen von führenden Wissenschaftlern zusammen, wobei die klassischen Erkenntnisse mit neuesten Forschungsdaten zu einem umfassenden Überblick über das Gebiet kombiniert werden.
Structure And Function Of Eukaryotic Chromosomes
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Author : Wolfgang Hennig
language : en
Publisher: Springer
Release Date : 2014-04-18
Structure And Function Of Eukaryotic Chromosomes written by Wolfgang Hennig and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-18 with Science categories.
This book presents an overview of various aspects of chromosome research, written by leading experts of the respective fields, combining classic and recent molecular biological results. The variety and comprehensiveness make it a handbook of chromosome research for all scientists, teachers and graduate students interested in this field. Dieses Buch faßt die unterschiedlichen Aspekte der Chromosomenforschung in Beiträgen von führenden Wissenschaftlern zusammen, wobei die klassischen Erkenntnisse mit neuesten Forschungsdaten zu einem umfassenden Überblick über das Gebiet kombiniert werden.
Human Chromosomes
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Author : Eeva Therman
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Human Chromosomes written by Eeva Therman and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This book provides an introduction to human cytogenetics. It is also suitable for use as a text in a general cytogenetics course, since the basic features of chromosome structure and behavior are shared by all eukar yotes. Because my own background includes plant and animal cytoge netics, many of the examples are taken from organisms other than man. Since the book is written from a cytogeneticist's point of view, human syndromes are described only as illustrations of the effects of abnormal chromosome constitutions on the phenotype. The selection of the phe nomena to be discussed and of the photographs to illustrate them is, in many cases, subjective and arbitrary and is naturally influenced by my interests and the work done in our laboratory. The approach to citations is the exact opposite of that usually used in scientific papers. Whenever possible, the latest and/or most comprehen sive review has been cited, instead of the original publication. Thus the reader is encouraged to delve deeper into any question of interest to him or her. I am greatly indebted to many colleagues for suggestions and criticism. However, my special thanks are due to Dr. JAMES F. CROW, Dr. TRAUTE M. SCHROEDER, and Dr. CARTER DENNISTON for their courage in reading the entire manuscript. I wish to express my gratitude also to the cytogeneticists and editors who have generously permitted the use of published and unpublished photographs.