Download or read book Gametes Spores written by John Farley and published by . This book was released on 1982 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gamete and Embryo fetal Origins of Adult Diseases written by He-Feng Huang and published by Springer Science & Business Media. This book was released on 2013-11-19 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Gamete and Embryo-fetal Origins of Adult Diseases introduces various diseases resulting from the abnormal gametogenesis and embryo development, which manifests as growth retardation, birth defects, or increased susceptibility to chronic metabolic diseases such as diabetes, cardiovascular disease and cancer in childhood and adult life, even fertility disorders and the risk of transgenerational transmission. Six common kinds of these diseases are discussed in separate chapters. The authors explore the connections between these diseases and epigenetic reprogramming, rapid cell differentiation and organ formation and environmental influences, including assisted reproductive technology and adverse intrauterine environments. With a summary of findings on the causes and progression of adult diseases at the phase of gametogenesis and embryo development, this book provides insights into the pathogenesis of disease and aids in the treatment and prevention of disease, meeting the requirement for improving the quality of the newborn population, and effectively preventing and curing major diseases at an early stage. This book offers new perspectives and will be an enlightening resource for obstetricians, paediatricians, epidemiologists, endocrinologists and sanitarians. Editor He-Feng Huang, M.D., is Professor and President of Women’s Hospital, School of Medicine, Zhejiang University, China. Editor Jian-Zhong Sheng, Ph.D., is Professor at the Department of Pathology & Pathophysiology, School of Medicine, Zhejiang University, China.

Download or read book God Gametes 4 and The Darwinian Fallacy written by Robert Jameson and published by Lulu.com. This book was released on 2015-05-28 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: The God Gametes theory argues that life on earth is part of the reproductive system of a parent species from a higher level of a multiverse. We contend a single female member of the parent species colonised earth for the purpose of reproduction. She drove the complexity of life on earth until one species, homo sapiens, evolved a large brain and the ability to host a consciousness reproductive cell of a male parent species. Charles Darwin called his book On the Origin of Species but natural selection is not about the 'origin' of anything. His theory was not about the 'origin' of species, nor about the 'origin' of life. Natural selection argues the case for how one 'living' species might gradually evolve into another 'living' species. It has nothing to do with how anything originated. Supporters of this concept foster the myth that with enough throws of the dice, with enough random coin flips, then blind probability can design complexity. It cannot.

Download or read book A Practical Guide to Selecting Gametes and Embryos written by Markus Montag and published by CRC Press. This book was released on 2014-06-16 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the many recent advances in assisted reproduction therapies (ART), improved technologies for identifying viable oocytes, sperm, and embryos are of primary importance. Paradoxically, the latest advances presented at conferences and symposia are often slow to become part of the daily routine in IVF laboratories. Detailing established and develo

Download or read book Germ line of the Gods God Gametes 3 and The Entanglement and Decay of Planet Earth written by Robert Jameson and published by Lulu.com. This book was released on 2013 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis presented in this book argues that life on earth is part of the reproductive system of an external parent species and our human soul the germ cell (a gamete) of a Father Being. We hold that all physical life on earth is the "soma" and whether it relates to the lives of individuals, or of species, can only have limited tenure. As a gamete however, our soul is part of the "germ-line" of our creator-beings and has the potential to live on after our death and the extinction of our species.

Download or read book Sexual Reproduction in Animals and Plants written by Hitoshi Sawada and published by Springer. This book was released on 2014-02-07 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the International Symposium on the Mechanisms of Sexual Reproduction in Animals and Plants, where many plant and animal reproductive biologists gathered to discuss their recent progress in investigating the shared mechanisms and factors involved in sexual reproduction. This now is the first book that reviews recent progress in almost all fields of plant and animal fertilization. It was recently reported that the self-sterile mechanism of a hermaphroditic marine invertebrate (ascidian) is very similar to the self-incompatibility system in flowering plants. It was also found that a male factor expressed in the sperm cells of flowering plants is involved in gamete fusion not only of plants but also of animals and parasites. These discoveries have led to the consideration that the core mechanisms or factors involved in sexual reproduction may be shared by animals, plants and unicellular organisms. This valuable book is highly useful for reproductive biologists as well as for biological scientists outside this field in understanding the current progress of reproductive biology.

Download or read book A Practical Guide to Selecting Gametes and Embryos written by Markus Montag and published by CRC Press. This book was released on 2014-06-16 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the many recent advances in assisted reproduction therapies (ART), improved technologies for identifying viable oocytes, sperm, and embryos are of primary importance. Paradoxically, the latest advances presented at conferences and symposia are often slow to become part of the daily routine in IVF laboratories. Detailing established and developing techniques, A Practical Guide to Selecting Gametes and Embryos provides a user-friendly text of ready-to-use ARTs that can be utilized effectively in the lab. In this volume, renowned embryologist and educator Markus Montag and his expert panel highlight sophisticated and proven selection strategies and emphasize the importance of proper lab practice in handling gametes and embryos. Topics include: Steps undertaken for the analysis of a semen sample Quality control and prevention of exposure to toxins in oocyte collection and embryo culture Morphological selection of gametes and embryos Both commonly used and innovative techniques for gamete and embryo selection, such as oxygen respiration and time-lapse imaging Invasive techniques, including polar body, embryo, and blastocyst biopsies as well as aneuploidy testing by FISH and array-CGH Accompanied by numerous figures and descriptions, this guide to selecting gametes and embryos brings the insight of international authors with knowledge and expertise, highlighting practical tips and key points. The book offers a starting point for applying successful selection strategies for reducing the rate of high-risk multiple gestations while maintaining or increasing viable pregnancy rates.

Download or read book Chemistry Biochemistry and Biology of 1 3 Beta Glucans and Related Polysaccharides written by Antony Bacic and published by Academic Press. This book was released on 2009-07-07 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry, Biochemistry, and Biology of 1-3 Beta Glucans and Related Polysaccharides presents a comprehensive, systematic and authoritative survey of information about a family of chemically related, but functionally diverse, naturally occurring polysaccharides--the (1-3)-glucans. International contributors describe the chemical and physicochemical properties of these glucans and their derivatives and the molecular biological and structural aspects of the enzymes involved in their formation and breakdown. A detailed analysis of their physiological roles in the various biological situations in which they are found will be provided. Additionally, evolutionary relationships among the family of these glucans will be described. - Topics of medical relevance include detailing the glucans' interactions with the immune system and research for cancer therapy applications - Web resource links allow scientists to explore additional beta glucan research - Separate indexes divided into Species and Subject for enhanced searchability

Download or read book Concepts of Biology written by Samantha Fowler and published by . This book was released on 2023-05-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Color print. Concepts of Biology is designed for the typical introductory biology course for nonmajors, covering standard scope and sequence requirements. The text includes interesting applications and conveys the major themes of biology, with content that is meaningful and easy to understand. The book is designed to demonstrate biology concepts and to promote scientific literacy.

Download or read book Meiosis and Gametogenesis written by and published by Academic Press. This book was released on 1997-11-24 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of the fact that the process of meiosis is fundamental to inheritance, surprisingly little is understood about how it actually occurs. There has recently been a flurry of research activity in this area and this volume summarizes the advances coming from this work. All authors are recognized and respected research scientists at the forefront of research in meiosis. Of particular interest is the emphasis in this volume on meiosis in the context of gametogenesis in higher eukaryotic organisms, backed up by chapters on meiotic mechanisms in other model organisms. The focus is on modern molecular and cytological techniques and how these have elucidated fundamental mechanisms of meiosis. Authors provide easy access to the literature for those who want to pursue topics in greater depth, but reviews are comprehensive so that this book may become a standard reference.Key Features* Comprehensive reviews that, taken together, provide up-to-date coverage of a rapidly moving field* Features new and unpublished information* Integrates research in diverse organisms to present an overview of common threads in mechanisms of meiosis* Includes thoughtful consideration of areas for future investigation

Download or read book Sperm Competition and Sexual Selection written by Tim R. Birkhead and published by Academic Press. This book was released on 1998-08-25 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sperm Competition and Sexual Selection presents the intricate ways in which sperm compete to fertilize eggs and how this has prompted reinterpretations of breeding behavior. This book provides a theoretical framework for the study of sperm competition, which is a central part of sexual selection. It also discusses the roles of females and the relationships between paternal care in sperm competition. The chapters focusing on taxonomic development are diverse and cover all the major animal groups, both vertebrate and invertebrate, and plants. The final chapter provides an overview discussing the relationship between sperm competition and sexual selection in terms of both function and mechanism and how these translate into species fitness. This book will be of prime interest to behaviorists, ecologists and evolutionary biologists, suggesting new avenues of research and new ways of approaching old problems.

Download or read book Cryopreservation of Fish Gametes written by Judith Betsy and published by Springer Nature. This book was released on 2020-06-27 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the reproductive physiology and endocrinology of fishes is essential for captive maturation and seed production in the field of aquaculture. Studying the spermatology of fishes is a comparatively new focus in aquaculture, which has emerged as an important area of fish research over the past two decades. In this regard, the cryopreservation of fish gametes is a crucial aspect. Moreover, energetics studies of gametes have become essential, considering the loss of vigour in the spermatozoa after cryopreservation.The latest development in this context is the cryopreservation of spermatogonial stem cell, which is also covered in the book, along with detailed information on embryo cryopreservation in fishes and crustaceans. The role of cryopreservation in conservation programmes is another important aspect, one that will especially interest biologists.This book addresses central issues in fish gamete cryopreservation and breeding, while also reviewing the history of cryopreservation. Its most unique feature is the breadth of its coverage, from basic information on reproduction in fishes, to such advanced topics as embryo cryopreservation. Chiefly intended as a handy troubleshooting guide, the book represents a valuable resource for research students in related fields.

Download or read book Heritable Human Genome Editing written by The Royal Society and published by National Academies Press. This book was released on 2021-01-16 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heritable human genome editing - making changes to the genetic material of eggs, sperm, or any cells that lead to their development, including the cells of early embryos, and establishing a pregnancy - raises not only scientific and medical considerations but also a host of ethical, moral, and societal issues. Human embryos whose genomes have been edited should not be used to create a pregnancy until it is established that precise genomic changes can be made reliably and without introducing undesired changes - criteria that have not yet been met, says Heritable Human Genome Editing. From an international commission of the U.S. National Academy of Medicine, U.S. National Academy of Sciences, and the U.K.'s Royal Society, the report considers potential benefits, harms, and uncertainties associated with genome editing technologies and defines a translational pathway from rigorous preclinical research to initial clinical uses, should a country decide to permit such uses. The report specifies stringent preclinical and clinical requirements for establishing safety and efficacy, and for undertaking long-term monitoring of outcomes. Extensive national and international dialogue is needed before any country decides whether to permit clinical use of this technology, according to the report, which identifies essential elements of national and international scientific governance and oversight.

Download or read book Part 1 MRCOG Revision Notes and Sample SBAs written by Neelanjana Mukhopadhaya and published by Cambridge University Press. This book was released on 2020-12-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise yet comprehensive guide is focused on the curriculum and current exam style of the MRCOG Part 1 examination. It integrates clinical knowledge with basic science, providing readers with a deeper understanding of pathophysiology of medical disorders in obstetrics and gynaecology. The lead editor is a member of the Part 1 Examination Committee and her insights are skilfully woven into the book's revision notes, sample Single Best Answer (SBA) question and answer explanations, and tips on exam technique. The book encourages a structured thought process to develop, making it easier for clinicians to make differential diagnoses and conduct relevant investigations and treatment plans. The focus on basic sciences also endows readers with the ability to develop research ideas and evaluate findings. Featuring easy-to-read text, highlighted key points, illustrations, and plenty of practice papers, this succinct guide is essential preparation reading for trainee obstetricians and gynaecologists taking the challenging Part 1 MRCOG exam.

Download or read book Conceiving People written by Daniel Groll and published by Oxford University Press. This book was released on 2021-08-24 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an open access title available under the terms of a CC BY-NC-ND 4.0 International license. It is free to read at Oxford Scholarship Online and offered as a free PDF download from OUP and selected open access locations. Each year, tens of thousands of children are conceived with donated gametes (sperm or eggs). By some estimates, there are over one million donor-conceived people in the United States and, of course, many more the world over. Some know they are donor-conceived. Some do not. Some know the identity of their donors. Others never will. Questions about what donor-conceived people should know about their genetic progenitors are hugely significant for literally millions of people, including donor-conceived people, their parents, and donors. But the practice of gamete donation also provides a vivid occasion for thinking about questions that matter to everyone. What is the value of knowing who your genetic progenitors are? How are our identities bound up with knowing where we come from? What obligations do parents have to their children? And what makes someone a parent in the first place? In Conceiving People: Identity, Genetics and Gamete Donation, Daniel Groll argues that people who plan to create a child with donated gametes should choose a donor whose identity will be made available to the resulting child. This is not, Groll argues, because having genetic knowledge is fundamentally important. Rather, it is because donor-conceived people are likely to develop a significant interest in having genetic knowledge and parents must help satisfy their children's significant interests. In other words, because a donor-conceived person is likely to care about having genetic knowledge, their parents should care too.

Download or read book The Evolution of Anisogamy written by Tatsuya Togashi and published by Cambridge University Press. This book was released on 2011-04-14 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Darwin identified the existence of separate male and female gametes as one of the central mysteries of evolutionary biology. 150 years later, the question of why male gametes exist remains an intriguing puzzle. In this, the first book solely devoted to the evolution of anisogamy, top theorists in the field explore why gamete dimorphism characterizes nearly all plants and animals. Did separate male and female gametes evolve as a result of competition, or does anisogamy instead represent selection for cooperation? If disruptive selection drove the evolution of anisogamy, with male gametes focused on search and fusion, and female gametes provisioning the new zygote, why do some algal species continue to produce gametes of a single size? Does sperm limitation, or escape from infection, better explain the need for extremely small, highly mobile sperm? Written by leaders in the field, this volume offers an authoritative and cutting-edge overview of evolutionary theory.