Download or read book Organisers Genes written by Conrad Hal Waddington and published by . This book was released on 1940 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conrad Hal Waddington's Organisers and Genes, published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer, while the second section delves into genes and their influence on development. In this book Waddington explored organizers in terms of their capacity and method of induction. First he examined the nature of induction, discussing crucial experiments concerning the organizer, including Hans Spemann's discovery of the organizer, and his own research into organizers in higher birds and mammals. Waddington separated the action of the organizer into two distinct categories, evocation and individuation, discussed below. The main experimental approach discussed in this book involved grafting organizing tissue from one embryo or region of an embryo to another. Waddington described evocation as non-assimilative induction, or a one-way inducing signal. He presented this as a chemical signal and illustrated evocation with the dead organizer experiment. The dead organizer was shown to be capable of inducing differentiation of neural tissue in the ectoderm. He also included chemical induction by estrogens and steroids as other evocative signals. An important aspect of any signal of evocation, as presented by Waddington, is that the signal is specific to the differentiation of a certain tissue type.
Download or read book Organisers Genes written by Conrad Hal Waddington and published by . This book was released on 1947 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conrad Hal Waddington's Organisers and Genes, published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer, while the second section delves into genes and their influence on development. In this book Waddington explored organizers in terms of their capacity and method of induction. First he examined the nature of induction, discussing crucial experiments concerning the organizer, including Hans Spemann's discovery of the organizer, and his own research into organizers in higher birds and mammals. Waddington separated the action of the organizer into two distinct categories, evocation and individuation, discussed below. The main experimental approach discussed in this book involved grafting organizing tissue from one embryo or region of an embryo to another. Waddington described evocation as non-assimilative induction, or a one-way inducing signal. He presented this as a chemical signal and illustrated evocation with the dead organizer experiment. The dead organizer was shown to be capable of inducing differentiation of neural tissue in the ectoderm. He also included chemical induction by estrogens and steroids as other evocative signals. An important aspect of any signal of evocation, as presented by Waddington, is that the signal is specific to the differentiation of a certain tissue type.
Download or read book Organisers and Genes by C H Waddington written by Conrad Hal Waddington and published by . This book was released on 1940 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Vertebrate Organizer written by Horst Grunz and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organizer area plays a central role in the formation of the embryonic axis and the central nervous system of all vertebrates including the human fetus. In The Vertebrate Organizer, outstanding molecular development biologists and embryologists report their latest approaches in this fascinating research area using different vertebrate model organisms. The presented data is of central importance for the understanding of early human embryogenesis.
Download or read book Cell organisation and Function written by Shakir Ali and published by Pearson Education India. This book was released on with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cell: Organisation, Functions and Regulatory Mechanisms is a textbook written for students and scholars studying cell biology at various levels. The study of cell biology is an essential component of the syllabi at undergraduate and postgraduate levels in universities and colleges that offer courses in biochemistry, biotechnology, genetics, molecular biology, immunology, zoology, botany, toxicology and medical, nursing, paramedical, pharmaceutical and agricultural sciences. This book provides a perfect blend of basic and applied knowledge in the area of cell sciences using the latest examples and experiments. It includes chapters on the structure and composition of the cell its constituent structures and molecules properties of these structures and molecules as well as the various regulatory mechanisms of cellular processes in both healthy and diseased states. The simplicity of the language used ensures that it can be understood by students who are non-native speakers of English and also by scholars who do not have an in-depth knowledge of the subject but would like to get acquainted with it while working in their respective areas of study.
Download or read book New Genetics New Identities written by Paul Atkinson and published by Routledge. This book was released on 2006-12-15 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic advocacy groups, science, and biovalue : creating political economies of hope / Carlos Novas -- Patients as public in ethics debates--interpreting the role of patient organizations in democracy / Annemiek Nelis, Gerard de Vries, and Rob Hagendijk -- From "scraps and fragments" to "whole organisms" : molecular biology, clinical research, and post genomic bodies / Susan E. Kelly -- Fashioning flesh : inclusion, exclusivity, and the potential of genomics / Fiona O'Neill -- Mapping origins : race and relatedness in population genetics and genetic genealogy / Catherine Nash
Download or read book Cytogenetics Evolution Biostatistics and Plant Breeding written by Shukla R.S. & Chandel P.S. and published by S. Chand Publishing. This book was released on 2004-09 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytology , Genetics, Evolution,Biostatistics and Plant Breeding for B.Sc. & M.Sc. Students
Download or read book The Life Organic written by Erik Peterson and published by University of Pittsburgh Press. This book was released on 2016-12-23 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: As scientists debated the nature of life in the nineteenth century, two theories predominated: vitalism, which suggested that living things contained a "vital spark," and mechanism, the idea that animals and humans differed from nonliving things only in their degree of complexity. Erik Peterson tells the forgotten story of the pursuit of a Third Way in biology, known by many names, including "the organic philosophy," which gave rise to C. H. Waddington's work in the subfield of epigenetics: an alternative to standard genetics and evolutionary biology that captured the attention of notable scientists from Francis Crick to Stephen Jay Gould. The Life Organic chronicles the influential biologists, mathematicians, philosophers, and biochemists from both sides of the Atlantic who formed Joseph Needham's Theoretical Biology Club, defined and refined Third-Way thinking through the 1930s, and laid the groundwork for some of the most cutting-edge achievements in biology today. By tracing the persistence of organicism into the twenty-first century, this book also raises significant questions about how we should model the development of the discipline of biology going forward.
Download or read book Chromosomes written by Adrian T. Sumner and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Essentials Of Human Embryology Rev Edn written by Bhatnagar and published by Orient Blackswan. This book was released on 2000 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Concise And Lucid Account Of Human Embryology, Useful For Undergraduate And Post-Graduate Medical And Paramedical Students. The Essential Features Of Human Development Have Been Presented, With Added Emphasis On The Cardiovascular, Alimentary And Urogenital Systems. Illustrations Have Been Designed And Exhaustively Labelled.
Download or read book Human Genome Analysis Programme written by Manuel Hallen and published by IOS Press. This book was released on 1995 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first Human Genome Analysis Programme (HGAP) was launched for the years 1990-1992. The aim of this programme has been to ensure a significant European contribution to the worldwide effort to map the human genome and, in the long term, to set a basis for support of European research activities in future wide-ranging medical applications.
Download or read book Advances in Genetics written by and published by Academic Press. This book was released on 1990-05-23 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Genetics
Download or read book Genetics and Evolution of the Domestic Fowl written by Lewis Stevens and published by Cambridge University Press. This book was released on 1991-11-21 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The science of genetics has undergone a period of very rapid and significant development in recent years, and the area of poultry genetics has been no exception. This book provides a balanced and up-to-date account of all the major areas of this subject from Mendelian to modern molecular genetics. The book begins by tracing the evolution of Gallus domesticus from its avian ancestors. Subsequent chapters cover important aspects of poultry genetics, including cytogenetics, transmission genetics, gene mapping, sex linkage, lethal genes, genetics of feathering and plumage, and quantitative genetics. In each chapter, a concise explanation of the genetic principles is followed by a full discussion illustrated by key examples. In the latter part of the book, recent advances in gene cloning and sequencing are examined. The impact of these exciting new developments on our understanding of gene structure and organisation, immunogenetics and the evolution of proteins is assessed. Finally, the uses of transgenic techniques and their implications are discussed. This book provides a clear and useful survey of the genetics and evolution of the domestic fowl, which will be of interest to postgraduate students and researchers in the fields of genetics, agriculture and veterinary medicine, as well as to poultry breeders (both commercial and non-commercial).
Download or read book Current Topics in Developmental Biology written by Roger A. Pedersen and published by Elsevier. This book was released on 1998-07-02 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Series provides a comprehensive survey of the major topics in the field of developmental biology. The volumes are valuable to researchers in animal and plant development, as well as to students and professionals who want an introduction to cellular and molecular mechanisms of development. This year marks a major milestone for the Series as it completes its thirtieth year of publication, making it the longest-running forum for contemporary issues in developmental biology.
Download or read book Current Topics in Developmental Biology written by and published by Elsevier. This book was released on 2001-03-12 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the embryonic stage of a multicellular organism, precise arrangements of different cell types arise. These cell types eventually become the tissues and organs of the organism if it is an animal, for instance. Developmental biology is the study of this process in both plants and animals and covers the entire development stage of the organism. Current Topics in Developmental Biology provides a comprehensive survey of the major topics in this rapidly advancing field. The volumes are valuable to researchers in animal and plant development as well as to students and professionals who want an introduction to cellular and molecular mechanisms of development. With over thirty years of publication, this series is the longest-running forum for contemporary issues in developmental biology.
Download or read book Mouse Development written by Janet Rossant and published by Gulf Professional Publishing. This book was released on 2002-03 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a classic compilation of current knowledge about mouse development and its correlates to research in cell biology, molecular biology, genetics, and neuroscience. Emphasis is placed on the research strategy, experimental design, and critical analysis of the data, disguishing this from other books that only focus on protocols for mouse developmental research. Selected chapters are indexed to electronic databases such as GeneBank, GenBank, Electronic Mouse Atlas, and Transgenic/Knockout, further increasing the utility of this book as a reference. *Broad-based overview of mouse development from fundamental to specialist levels *Extensive coverage of a wide range of developmental mutations of the mouse *Excellent benchmark illustrations of brain, craniofacial, gut and heart development *In-depth experiment-based assessment of concepts in mammalian development *Focus on models of specific relevance to human development *Comprehensive reference to key literature and electronic databases related to mouse development *High-quality full-color production
Download or read book Growing Explanations written by M. Norton Wise and published by Duke University Press. This book was released on 2004-11-24 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: For much of the twentieth century scientists sought to explain objects and processes by reducing them to their components—nuclei into protons and neutrons, proteins into amino acids, and so on—but over the past forty years there has been a marked turn toward explaining phenomena by building them up rather than breaking them down. This collection reflects on the history and significance of this turn toward “growing explanations” from the bottom up. The essays show how this strategy—based on a widespread appreciation for complexity even in apparently simple processes and on the capacity of computers to simulate such complexity—has played out in a broad array of sciences. They describe how scientists are reordering knowledge to emphasize growth, change, and contingency and, in so doing, are revealing even phenomena long considered elementary—like particles and genes—as emergent properties of dynamic processes. Written by leading historians and philosophers of science, these essays examine the range of subjects, people, and goals involved in changing the character of scientific analysis over the last several decades. They highlight the alternatives that fields as diverse as string theory, fuzzy logic, artificial life, and immunology bring to the forms of explanation that have traditionally defined scientific modernity. A number of the essays deal with the mathematical and physical sciences, addressing concerns with hybridity and the materials of the everyday world. Other essays focus on the life sciences, where questions such as “What is life?” and “What is an organism?” are undergoing radical re-evaluation. Together these essays mark the contours of an ongoing revolution in scientific explanation. Contributors. David Aubin, Amy Dahan Dalmedico, Richard Doyle, Claus Emmeche, Peter Galison, Stefan Helmreich, Ann Johnson, Evelyn Fox Keller, Ilana Löwy, Claude Rosental, Alfred Tauber
