The Organization and Cell-Lineage of the Ascidian Egg (Classic Reprint)

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ISBN 13 : 9781332305292
Total Pages : 174 pages
Book Rating : 4.3/5 (52 download)

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Book Synopsis The Organization and Cell-Lineage of the Ascidian Egg (Classic Reprint) by : Edwin G. Conklin

Download or read book The Organization and Cell-Lineage of the Ascidian Egg (Classic Reprint) written by Edwin G. Conklin and published by . This book was released on 2015-08-05 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Organization and Cell-Lineage of the Ascidian Egg May not these differentiations appear at still earlier stages and "organ-forming germ regions" be marked out in the egg before cleavage begins. Finally does the organization of the egg arise de novo in the ovary, or may a certain part of it be carried over from generation to generation, and is this early organization of the egg in any way different from the organization of any cell? These are problems of profound importance which lie at the basis of any thorough study of development, inheritance and evolution. B. Ascidian Embryology. - Anyone who has observed the ascidian egg will understand why it has been such a favorite object of study. The cleavage of the egg is so beautifully regular and can be observed so readily in life that it is not surprising that ascidians were among the first animals to which the "cell-lineage" method was applied. It is surprising, however, to find such diversity of opinion with regard to the development of these animals; even in some of the most important points in the early development, such as the relation of the poles of the egg to those of the gastrula, or the cell origin of the germ layers, scarcely two authors agree, in spite of the fact that these eggs are perhaps as favorable as any others in the whole animal kingdom for the stud of these problems. Under the circumstances it is impossible to avoid the conclusion that a large amount of very careless work has been done in this field. Accuracy is ever the avowed aim of science, and when one finds scientific work unpardonably inaccurate he may justly feel indignant. For some reason or other ascidian embryology has ever been a field of conflict and confusion. In some cases controversy has raged for years around a mere blunder which has thus gained a sort of immortality rarely attained by accurate work. But ascidian embryology furnishes illustrations not only of inaccurate work; it also affords some of the most classical examples of accurate and substantial research. Considering the time when the- were written, Kowalevsky's papers (1866, 1871) are models of accuracy. The beautiful studies of Van Beneden and Julin on the segmentation of the ascidian egg and on the morphology of the tunicates (1884, 1886) surpass in excellence anything which had been done up to that time, and in some respects they have not been equalled by an more recent work on the development of these animals. Chabry's (1887) classical paper on the normal and teratological embryology of ascidians is a masterpiece, - one of the first and best illustrations of the application of the experimental method to the study of embryology. After this, the most important work dealing with the early development of ascidians is that of Castle (1894, 1896), although it is marred by some fundamental mistakes; he has applied in detail the method of cell lineage to the study of the development of Ciona intestinalis, and has followed the history of the individual cleavage cells farther than had any of his predecessors. Other work which deserves mention has been done by Kupffer (1870), Seeliger (1885), Davidoff (1889), Samassa (1894) and others, and will be referred to later in the body of this work. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

The Organization and Cell-lineage of the Ascidian Egg

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Publisher : Legare Street Press
ISBN 13 : 9781018596358
Total Pages : 0 pages
Book Rating : 4.5/5 (963 download)

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Book Synopsis The Organization and Cell-lineage of the Ascidian Egg by : Edwin Grant Conklin

Download or read book The Organization and Cell-lineage of the Ascidian Egg written by Edwin Grant Conklin and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Catalogue ...

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ISBN 13 :
Total Pages : 516 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Catalogue ... by : Fiedler, Henry George, firm, booksellers, New York

Download or read book Catalogue ... written by Fiedler, Henry George, firm, booksellers, New York and published by . This book was released on 1936 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Science as a Way of Knowing

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Publisher : Harvard University Press
ISBN 13 : 9780674794825
Total Pages : 548 pages
Book Rating : 4.7/5 (948 download)

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Book Synopsis Science as a Way of Knowing by : John Alexander Moore

Download or read book Science as a Way of Knowing written by John Alexander Moore and published by Harvard University Press. This book was released on 1993 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book makes Moore's wisdom available to students in a lively, richly illustrated account of the history and workings of life. Employing rhetoric strategies including case histories, hypotheses and deductions, and chronological narrative, it provides both a cultural history of biology and an introduction to the procedures and values of science.

Cell Cycle and Cell Differentiation

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Publisher : Springer Science & Business Media
ISBN 13 : 354037390X
Total Pages : 336 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Cell Cycle and Cell Differentiation by : J. Reinert

Download or read book Cell Cycle and Cell Differentiation written by J. Reinert and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is instructive to compare the response of biologists to the two themes that comprise the title of this volume. The concept of the cell cycle-in contra distinction to cell division-is a relatively recent one. Nevertheless biologists of all persuasions appreciate and readily agree on the central problems in this area. Issues ranging from mechanisms that initiate and integrate the synthesis of chro mosomal proteins and DNA during S-phase of mitosis to the manner in which assembly of microtubules and their interactions lead to the segregation of metaphase chromosomes are readily followed by botanists and zoologists, as well as by cell and molecular biologists. These problems are crisp and well-defined. The current state of "cell differentiation" stands in sharp contrast. This, one of the oldest problems in experimental biology, almost defies definition today. The difficulties arise not only from a lack of pertinent information on the regulatory mechanisms, but also from conflicting basic concepts in this field. One of the ways in which this situation might be improved would be to find a broader experimental basis, including a better understanding of the relationship between the cell cycle and cell differentiation.

Stem Cell Biology

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Publisher : CSHL Press
ISBN 13 : 9780879696733
Total Pages : 566 pages
Book Rating : 4.6/5 (967 download)

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Book Synopsis Stem Cell Biology by : Daniel R. Marshak

Download or read book Stem Cell Biology written by Daniel R. Marshak and published by CSHL Press. This book was released on 2001 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem cells are the focus of intense interest from a growing, multidisciplinary community of investigators with new tools for isolating and characterizing these elusive cell types. This volume, which features contributions from many of the world's leading laboratories, provides a uniquely broad and authoritative basis for understanding the biology of stem cells and the current excitement about their potential for clinical exploitation. It is an essential work of reference for investigators in embryology, hematology, and neurobiology, and their potential for clinical exploitation. It is an essential work of reference for investigators in embryology, hematology, and neurobiology, and their collaborators in the emerging field of regenerative medicine.

Vertebrate Photoreceptors

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Publisher : Springer
ISBN 13 : 9784431563358
Total Pages : 0 pages
Book Rating : 4.5/5 (633 download)

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Book Synopsis Vertebrate Photoreceptors by : Takahisa Furukawa

Download or read book Vertebrate Photoreceptors written by Takahisa Furukawa and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a series of comprehensive views on various important aspects of vertebrate photoreceptors. The vertebrate retina is a tissue that provides unique experimental advantages to neuroscientists. Photoreceptor neurons are abundant in this tissue and they are readily identifiable and easily isolated. These features make them an outstanding model for studying neuronal mechanisms of signal transduction, adaptation, synaptic transmission, development, differentiation, diseases and regeneration. Thanks to recent advances in genetic analysis, it also is possible to link biochemical and physiological investigations to understand the molecular mechanisms of vertebrate photoreceptors within a functioning retina in a living animal. Photoreceptors are the most deeply studied sensory receptor cells, but readers will find that many important questions remain. We still do not know how photoreceptors, visual pigments and their signaling pathways evolved, how they were generated and how they are maintained. This book will make clear what is known and what is not known. The chapters are selected from fields of studies that have contributed to a broad understanding of the birth, development, structure, function and death of photoreceptor neurons. The underlying common word in all of the chapters that is used to describe these mechanisms is “molecule”. Only with this word can we understand how these highly specific neurons function and survive. It is challenging for even the foremost researchers to cover all aspects of the subject. Understanding photoreceptors from several different points of view that share a molecular perspective will provide readers with a useful interdisciplinary perspective.

The Fish Oocyte

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Publisher : Springer Science & Business Media
ISBN 13 : 1402062354
Total Pages : 513 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis The Fish Oocyte by : Patrick J. Babin

Download or read book The Fish Oocyte written by Patrick J. Babin and published by Springer Science & Business Media. This book was released on 2007-08-17 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview on egg production in fish, from the standpoint of the oocyte. It covers oocyte development, maturation, hydration and fertilization. The book places special emphasis on using state-of-the-art tools for discerning the ultra-structure of the follicle and genomic/proteomic tools to fully understand biological basis of fish reproduction.

Chordate Zoology

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Publisher : S. Chand Publishing
ISBN 13 : 8121916399
Total Pages : 1095 pages
Book Rating : 4.1/5 (219 download)

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Book Synopsis Chordate Zoology by : P.S.Verma

Download or read book Chordate Zoology written by P.S.Verma and published by S. Chand Publishing. This book was released on 2010-12 with total page 1095 pages. Available in PDF, EPUB and Kindle. Book excerpt: FOR B.Sc & B.Sc.(Hons) CLASSES OF ALL INDIAN UNIVERSITIES AND ALSO AS PER UGC MODEL CURRICULUMN Contents: CONTENTS:Protochordates:Hemicholrdata 1.Urochordata Cephalochordata Vertebrates : Cyclostomata 3. Agnatha, Pisces Amphibia 4. Reptilia 5. Aves Mammalia 7 Comparative Anatomy:lntegumentary System 8 Skeletal System Coelom and Digestive System 10 Respiratory System 11. Circulatory System Nervous System 13. Receptor Organs 14 Endocrine System 15 Urinogenital System 16 Embryology Some Comparative Charts of Protochordates 17 Some Comparative Charts of Vertebrate Animal Types 18 Index.

Genomic Regulatory Systems

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Publisher : Elsevier
ISBN 13 : 0080525598
Total Pages : 274 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Genomic Regulatory Systems by : Eric H. Davidson

Download or read book Genomic Regulatory Systems written by Eric H. Davidson and published by Elsevier. This book was released on 2001-01-24 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction between biology and evolution has been the subject of great interest in recent years. Because evolution is such a highly debated topic, a biologically oriented discussion will appeal not only to scientists and biologists but also to the interested lay person. This topic will always be a subject of controversy and therefore any breaking information regarding it is of great interest.The author is a recognized expert in the field of developmental biology and has been instrumental in elucidating the relationship between biology and evolution. The study of evolution is of interest to many different kinds of people and Genomic Regulatory Systems: In Development and Evolution is written at a level that is very easy to read and understand even for the nonscientist.* Contents Include* Regulatory Hardwiring: A Brief Overview of the Genomic Control Apparatus and Its Causal Role in Development and Evolution * Inside the Cis-Regulatory Module: Control Logic and How the Regulatory Environment Is Transduced into Spatial Patterns of Gene Expression* Regulation of Direct Cell-Type Specification in Early Development* The Secret of the Bilaterians: Abstract Regulatory Design in Building Adult Body Parts* Changes That Make New Forms: Gene Regulatory Systems and the Evolution of Body Plans

Lentiviral Vectors

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Publisher : Springer Science & Business Media
ISBN 13 : 9783540421900
Total Pages : 276 pages
Book Rating : 4.4/5 (219 download)

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Book Synopsis Lentiviral Vectors by : Didier Trono

Download or read book Lentiviral Vectors written by Didier Trono and published by Springer Science & Business Media. This book was released on 2001-12-14 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time a compilation of chapters that depict the biological bases underlying the development of lentiviral vectors, the techniques involved in the manufacture of this new gene delivery tool, and its most promising applications.

Development and Reproduction in Humans and Animal Model Species

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Publisher : Springer
ISBN 13 : 3662437848
Total Pages : 723 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Development and Reproduction in Humans and Animal Model Species by : Werner A. Mueller

Download or read book Development and Reproduction in Humans and Animal Model Species written by Werner A. Mueller and published by Springer. This book was released on 2015-01-03 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes human development including sexual reproduction and stem cell research with the development of model organisms that are accessible to genetic and experimental analysis in readily understandable texts and 315 multi-colored graphics. The introductory account of model organisms selected from the entire animal kingdom presents general principles, which are then outlined in subsequent chapters devoted to, for example, sexual development; genes controlling development and their contemporary molecular-analysis methods; production of clones and transgenic animals; development of the nervous and circulatory systems; regenerative medicine and ageing. Finally the evolution of developmental toolkits and novelties is discussed including the genetic basis of the enlargement of the human forebrain. Separate boxes are devoted to controversial questions such as the benefits and problems of prenatal diagnostics or the construction of ancient body plans.

Heterochrony

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Publisher : Springer Science & Business Media
ISBN 13 : 1475707738
Total Pages : 452 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Heterochrony by : Michael L. McKinney

Download or read book Heterochrony written by Michael L. McKinney and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors outline evolutionary thought from pre-Darwinian biology to current research on the subject. They broadly label the factors of evolution as intrinsic and extrinsic, with Darwin favoring the latter by emphasizing the process of natural selection and later followers of Darwin carrying t

The Regulatory Genome

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Publisher : Elsevier
ISBN 13 : 0080455573
Total Pages : 303 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis The Regulatory Genome by : Eric H. Davidson

Download or read book The Regulatory Genome written by Eric H. Davidson and published by Elsevier. This book was released on 2010-07-19 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gene regulatory networks are the most complex, extensive control systems found in nature. The interaction between biology and evolution has been the subject of great interest in recent years. The author, Eric Davidson, has been instrumental in elucidating this relationship. He is a world renowned scientist and a major contributor to the field of developmental biology. The Regulatory Genome beautifully explains the control of animal development in terms of structure/function relations of inherited regulatory DNA sequence, and the emergent properties of the gene regulatory networks composed of these sequences. New insights into the mechanisms of body plan evolution are derived from considerations of the consequences of change in developmental gene regulatory networks. Examples of crucial evidence underscore each major concept. The clear writing style explains regulatory causality without requiring a sophisticated background in descriptive developmental biology. This unique text supersedes anything currently available in the market. - The only book in the market that is solely devoted to the genomic regulatory code for animal development - Written at a conceptual level, including many novel synthetic concepts that ultimately simplify understanding - Presents a comprehensive treatment of molecular control elements that determine the function of genes - Provides a comparative treatment of development, based on principles rather than description of developmental processes - Considers the evolutionary processes in terms of the structural properties of gene regulatory networks - Includes 42 full-color descriptive figures and diagrams

Thyroid Scanning

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Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Thyroid Scanning by : Clyde Michael Williams

Download or read book Thyroid Scanning written by Clyde Michael Williams and published by . This book was released on 1960 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Genomic Control Process

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Publisher : Academic Press
ISBN 13 : 0124047467
Total Pages : 461 pages
Book Rating : 4.1/5 (24 download)

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Book Synopsis Genomic Control Process by : Isabelle S. Peter

Download or read book Genomic Control Process written by Isabelle S. Peter and published by Academic Press. This book was released on 2015-01-21 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomic Control Process explores the biological phenomena around genomic regulatory systems that control and shape animal development processes, and which determine the nature of evolutionary processes that affect body plan. Unifying and simplifying the descriptions of development and evolution by focusing on the causality in these processes, it provides a comprehensive method of considering genomic control across diverse biological processes. This book is essential for graduate researchers in genomics, systems biology and molecular biology seeking to understand deep biological processes which regulate the structure of animals during development. - Covers a vast area of current biological research to produce a genome oriented regulatory bioscience of animal life - Places gene regulation, embryonic and postembryonic development, and evolution of the body plan in a unified conceptual framework - Provides the conceptual keys to interpret a broad developmental and evolutionary landscape with precise experimental illustrations drawn from contemporary literature - Includes a range of material, from developmental phenomenology to quantitative and logic models, from phylogenetics to the molecular biology of gene regulation, from animal models of all kinds to evidence of every relevant type - Demonstrates the causal power of system-level understanding of genomic control process - Conceptually organizes a constellation of complex and diverse biological phenomena - Investigates fundamental developmental control system logic in diverse circumstances and expresses these in conceptual models - Explores mechanistic evolutionary processes, illuminating the evolutionary consequences of developmental control systems as they are encoded in the genome

Adaptation and Natural Selection

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Publisher : Princeton University Press
ISBN 13 : 0691185506
Total Pages : 335 pages
Book Rating : 4.6/5 (911 download)

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Book Synopsis Adaptation and Natural Selection by : George Christopher Williams

Download or read book Adaptation and Natural Selection written by George Christopher Williams and published by Princeton University Press. This book was released on 2018-10-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological evolution is a fact—but the many conflicting theories of evolution remain controversial even today. When Adaptation and Natural Selection was first published in 1966, it struck a powerful blow against those who argued for the concept of group selection—the idea that evolution acts to select entire species rather than individuals. Williams’s famous work in favor of simple Darwinism over group selection has become a classic of science literature, valued for its thorough and convincing argument and its relevance to many fields outside of biology. Now with a new foreword by Richard Dawkins, Adaptation and Natural Selection is an essential text for understanding the nature of scientific debate.