Download or read book A Review of Parthenogenesis written by Everett Franklin Phillips and published by . This book was released on 1903 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of Parthenogenesis written by Everett Franklin Phillips and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Parthenogenesis written by Everett Franklin Phillips and published by . This book was released on 1903 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Artificial Parthenogenesis and Fertilization written by Jacques Loeb and published by . This book was released on 1913 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lost Sex written by Isa Schön and published by Springer Science & Business Media. This book was released on 2009-09-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex is the queen of problems in evolutionary biology. Generations of researchers have investigated one of the last remaining evolutionary paradoxes: why sex exists at all. Given that sexual reproduction is costly from an evolutionary point of view, one could wonder why not all animals and plants reproduce asexually. Dozens of contemporary hypotheses attempt to explain the prevalence of sex and its advantages and predict the early extinction of fully asexual lineages. The major theme of this book is: what is the fate of animal and plant groups in which sex is lost? Initial chapters discuss theory behind asexual life: what major disadvantages do asexual groups have to face, what are the genetic and ecological consequences and what does this theory predict for more applied aspects of asexual life, for example in agricultural pests, diseases as well as in cultural crops such as grapes. Cases studies in many animals (focusing on both invertebrates and vertebrates) and plants reveal parallel, but also singularly novel adaptations to the absence of meiosis and syngamy. And last but not least, are asexuals really doomed to early extinction or do genuine ancient asexuals exist? This book assembles contributions from the most important research groups dealing with asexual evolution in eukaryotes. It is a milestone in research on parthenogenesis and will be useful to undergraduate as well as graduate students and to senior researchers in all fields of evolutionary biology, as the paradox of sex remains its queen of problems.
Download or read book The Evolution of Sex and its Consequences written by S.C. Stearns and published by Birkhäuser. This book was released on 2013-11-21 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clonality written by John Avise and published by Oxford University Press. This book was released on 2008-10-23 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 99.9% of vertebrate species reproduce sexually. The exceptional 0.1% reproduce via asexual or clonal means, which vary wildly and are fascinating in their own right. In this book, John C. Avise describes the genetics, ecology, natural history, and evolution of the world's approximately 100 species of vertebrate animal that routinely display one form or another of clonal or quasi-clonal reproduction. By considering the many facets of sexual abstinence and clonal reproduction in vertebrate animals, Avise sheds new light on the biological meaning and ramifications of standard sexuality.
Download or read book Parthenogenesis written by Den Poitras and published by Independently Published. This book was released on 2018-12-14 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is said that Buddha's mother conceived her son while in a state of blissful meditation under a banyan tree. Mary conceived Jesus in more or less the same way. It's also been said that Zoroaster, Leonardo Da Vinci, Mary and Hanna, Mary's mother, and Moses (floating down a river in a basket?) plus Athena and Athena's mother, Plato, Alexander the Great, and scores more geniuses, visionaries, leaders and healers throughout history are claimed to have come about this way. If many of the lower species can and do conceive parthenogenetically, I don't think it's too absurd or irrational to assume that humans can too. There are more questions than answers regarding this.This book's the result of 45 years of searching, researching and contemplation. It thoroughly explores this "subject of subjects" through science, mythology, archaeology, religion, indigenous people and yes, personal testimonies.
Download or read book Artificial Parthenogenesis and Fertilisation written by Thomas Hastie Bryce and published by . This book was released on 1902 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Animal Biotechnology written by Birbal Singh and published by Springer. This book was released on 2019-07-09 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book entitled, “Advances in Animal Biotechnology,” is a compilation of state-of-the-art in the field of Animal Biotechnology including fishery, that are not sheltered in depth in earlier publications. It offers an update on avant-garde technologies and advances in key aspects of genetic engineering, metagenomics, assisted reproduction, animal genomics, biotechnology in veterinary health, as well as the role of gut and marine microbial ecosystems in livestock and industrial development. The book is divided broadly into five different sections, viz., Gut Microbiome and Nutritional Biotechnology, Assisted Reproduction Biotechnology, Livestock Genomics, Health Biotechnology, and Animal Biotechnology in Global Perspective. The book covers the syllabi of Animal Biotechnology courses in various universities, academia and competitive examinations at various levels. Researchers, Continuing Graduates, and Academicians, Research Institutions, and Biotech Companies will be benefited from this valuable compilation of research. Its broad spectrum makes this work a valuable resource for professionals, researchers, academics and students in the field of veterinary and animal production as well as the biotechnology industry.
Download or read book A Cytological Study of Artificial Parthenogenesis in Strongylocentrotus Purpuratus written by Edward Hindle and published by . This book was released on 1910 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intersexuality in the Animal Kingdom written by R. Reinboth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Richard Goldschmidt' coined the term "intersexuality" in 1915, he intended it to apply to normally dioecious species which exhibit some kind of mixture between male and female characters. However, as knowledge of the bewildering variability present in the sexual orga nization of members of the animal kingdom has increased, the original meaning of the word has changed. Today many authors define inter sexuality as "the presence of both male and female characteristics, or of intermediate sexual characteristics, in a single individual".2 This more extensive and widely accepted concept justifies the title of our book •. Among all the anatomical and physiological features of living organisms the reproductive system has a unique importance for the perpetuation of the species. Conversely, reproductive processes are of little or no account for the viability of the individual. Therefore, within the framework of general biology reproduction has all too often been looked at solely from the point of view of genetics. Lively discussions about genotypic versus phenotypic sex determination long dominated the sci entific literature on sexuality in animals; this one-sided emphasis has tended to obscure many important facets of an organism's ability to reproduce. Recent developments in current biological research have brought the classic problem of sex differentiation into focus again, and the rapid progress being made in comparative endocrinology has added a new di mension to the study of reproductive biology.
Download or read book The Biology of Reproduction written by Giuseppe Fusco and published by Cambridge University Press. This book was released on 2019-10-10 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: A look into the phenomena of sex and reproduction in all organisms, taking an innovative, unified and comprehensive approach.
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.
Download or read book Brenner s Encyclopedia of Genetics written by Stanley Maloy and published by Academic Press. This book was released on 2013-03-03 with total page 4360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The explosion of the field of genetics over the last decade, with the new technologies that have stimulated research, suggests that a new sort of reference work is needed to keep pace with such a fast-moving and interdisciplinary field. Brenner's Encyclopedia of Genetics, Second Edition, Seven Volume Set, builds on the foundation of the first edition by addressing many of the key subfields of genetics that were just in their infancy when the first edition was published. The currency and accessibility of this foundational content will be unrivalled, making this work useful for scientists and non-scientists alike. Featuring relatively short entries on genetics topics written by experts in that topic, Brenner's Encyclopedia of Genetics, Second Edition, Seven Volume Set provides an effective way to quickly learn about any aspect of genetics, from Abortive Transduction to Zygotes. Adding to its utility, the work provides short entries that briefly define key terms, and a guide to additional reading and relevant websites for further study. Many of the entries include figures to explain difficult concepts. Key terms in related areas such as biochemistry, cell, and molecular biology are also included, and there are entries that describe historical figures in genetics, providing insights into their careers and discoveries. This 7-volume set represents a 25% expansion from the first edition, with over 1600 articles encompassing this burgeoning field Thoroughly up-to-date, with many new topics and subfields covered that were in their infancy or not inexistence at the time of the first edition. Timely coverage of emergent areas such as epigenetics, personalized genomic medicine, pharmacogenetics, and genetic enhancement technologies Interdisciplinary and global in its outlook, as befits the field of genetics Brief articles, written by experts in the field, which not only discuss, define, and explain key elements of the field, but also provide definition of key terms, suggestions for further reading, and biographical sketches of the key people in the history of genetics
Download or read book Small Pleasures written by Clare Chambers and published by HarperCollins. This book was released on 2021-10-12 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the best tradition of Tessa Hadley, Kazuo Ishiguro, and Ann Patchett—an astonishing, keenly observed period piece about an ordinary British woman in the 1950s whose dutiful life takes a sudden turn into a pitched battle between propriety and unexpected passion. "With wit and dry humor...quietly affecting in unexpected ways. Chambers' language is beautiful, achieving what only the most skilled writers can: big pleasure wrought from small details."--The New York Times LONGLISTED FOR THE WOMEN'S PRIZE FOR FICTION 1957: Jean Swinney is a feature writer on a local paper in the southeast suburbs of London. Clever but with limited career opportunities and on the brink of forty, Jean lives a dreary existence that includes caring for her demanding widowed mother, who rarely leaves the house. It’s a small life with little joy and no likelihood of escape. That all changes when a young woman, Gretchen Tilbury, contacts the paper to claim that her daughter is the result of a virgin birth. Jean seizes onto the bizarre story and sets out to discover whether Gretchen is a miracle or a fraud. But the more Jean investigates, the more her life becomes strangely (and not unpleasantly) intertwined with that of the Tilburys, including Gretchen’s gentle and thoughtful husband Howard, who mostly believes his wife, and their quirky and charming daughter Margaret, who becomes a sort of surrogate child for Jean. Gretchen, too, becomes a much-needed friend in an otherwise empty social life. Jean cannot bring herself to discard what seems like her one chance at happiness, even as the story that she is researching starts to send dark ripples across all their lives…with unimaginable consequences. Both a mystery and a love story, Small Pleasures is a literary tour-de-force in the style of The Remains of the Day, about conflict between personal fulfillment and duty; a novel that celebrates the beauty and potential for joy in all things plain and unfashionable.
Download or read book Morphology and Bionomics of Dorylaims Nematoda Dorylaimida written by Reyes Peña Santiago and published by BRILL. This book was released on 2020-12-29 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gives a detailed morphology of the dorylaims and provides a thorough overview of their feeding behaviour, reproduction, ecology, and diversity. You will learn what dorylaims are like and how they live.
