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2011 (2)

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Book
The evolution of anisogamy
Authors: ---
ISBN: 9780511975943 9780521880954 9780521707374 9781139076999 113907699X 9781139079273 1139079271 0521880955 1107218993 1139062638 1283112949 9786613112941 1139074741 1139068962 0511975945 1139081551 Year: 2011 Publisher: Cambridge Cambridge University Press

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Abstract

"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"--


Book
Sperm chromatin : biological and clinical applications in male infertility and assisted reproduction
Authors: ---
ISBN: 1441917810 9786613476715 1441968571 1283476711 Year: 2011 Publisher: New York : Springer,

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Sperm DNA damage is common and has been associated with reduced rates of conception, impaired embryonic development and increased risk of miscarriage. Although the exact causes of sperm DNA damage are unknown, it is clear that infertile men possess substantially higher levels of sperm DNA damage than do fertile men. Written by leading, internationally renowned clinicians and basic scientists with expertise in sperm DNA, Sperm Chromatin: Biological and Clinical Applications in Male Infertility and Assisted Reproduction provides readers with a thoughtful and comprehensive review of the biological and clinical significance of sperm DNA damage. The work covers the fundamental principles of sperm chromatin architecture and function, the proposed modes of DNA damage and repair, the tests of sperm DNA damage, the clinical aspects of DNA damage and the impact of DNA damage on reproductive outcome. Unlike any other title on the topic, Sperm Chromatin: Biological and Clinical Applications in Male Infertility and Assisted Reproduction is an invaluable addition to the literature and will serve as an indispensable resource for basic scientists with an interest in sperm biology and for urologists, gynecologists, reproductive endocrinologists, and embryologists working in the field of infertility.

Keywords

Chromatin. --- Semen -- chemistry. --- Spermatozoa -- chemistry. --- Sperm-Ovum Interactions. --- Spermatogenesis --- Infertility, Male --- Sex chromatin --- Germ Cells --- Chromosome Structures --- Infertility --- Medicine --- Genetic Processes --- DNA Packaging --- Biological Science Disciplines --- Gene Expression Regulation --- Nucleoproteins --- Genitalia --- Genetic Structures --- Cells --- Proteins --- Genetic Phenomena --- Health Occupations --- Natural Science Disciplines --- Cell Physiological Processes --- Genital Diseases, Male --- Chromosomes --- Anatomy --- Male Urogenital Diseases --- Amino Acids, Peptides, and Proteins --- Intranuclear Space --- Urogenital System --- Phenomena and Processes --- Cell Physiological Phenomena --- Disciplines and Occupations --- Diseases --- Cell Nucleus Structures --- Chemicals and Drugs --- Cell Nucleus --- Intracellular Space --- Cellular Structures --- Spermatozoa --- Physiology --- Chromatin --- Chromatin Assembly and Disassembly --- Pathology --- DNA Damage --- Zoology --- Health & Biological Sciences --- Gynecology & Obstetrics --- Animal Anatomy & Embryology --- Genetic aspects --- Infertility, Male. --- Human reproductive technology. --- Spermatozoa. --- Male gametes --- Sperm --- Assisted human reproduction --- Assisted conception --- Conception --- Human assisted reproduction --- Human reproduction --- Male infertility --- Male sterility --- Sterility, Male --- Technological innovations --- Medicine. --- Obstetrics. --- Endocrinology. --- Reproductive medicine. --- Urology. --- Cell biology. --- Developmental biology. --- Medicine & Public Health. --- Reproductive Medicine. --- Developmental Biology. --- Cell Biology. --- Obstetrics/Perinatology. --- Gametes --- Semen --- Medical technology --- Reproductive technology --- Generative organs, Male --- Cytology. --- Obstetrics/Perinatology/Midwifery. --- Genitourinary organs --- Maternal-fetal medicine --- Cell biology --- Cellular biology --- Biology --- Cytologists --- Development (Biology) --- Growth --- Ontogeny --- Internal medicine --- Hormones --- Human reproductive health --- Human reproductive medicine --- Reproductive medicine --- Health --- Health aspects --- Endocrinology .

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