Author: F. A. E. Crew
Publisher: Cambridge University Press
ISBN: 1107502500
Category : Science
Languages : en
Pages : 201
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Book Description
Originally published in 1927, this book examines how genetic information is revealed through the physiology, specifically the biological sex, of an animal. Crew explains the genetic mechanism of sex determination, hermaphroditism, sex-reversal and the ways in which an animal population maintains an appropriate male to female ratio.
Author: Francis Albert Eley Crew
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 188
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Book Description
Author: Graham Bell
Publisher: Routledge
ISBN: 1000497445
Category : Science
Languages : en
Pages : 634
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Book Description
Originally published in 1982, The Masterpiece of Nature examines sex as representative of the most important challenge to the modern theory of evolution. The book suggests that sex evolved, not as the result of normal Darwinian processes of natural selection, but through competition between populations or species - a hypothesis elsewhere almost universally discredited. The book also discusses the nature of sex and its consequences for the individual and for the population, as well as various other theories of sex. Since the value of these theories is held to reside wholly in their ability to predict the patterns of sexuality observed in nature, the book seeks to provide an extensive review of the circumstances in which sexuality is attenuated or lost throughout the animal kingdom, and these facts are then used to weigh up the merits of the rival theories. This book will be of interest to researchers in the area of genetics, ecology and evolutionary biology.
Author: R. Reinboth
Publisher: Springer Science & Business Media
ISBN: 364266069X
Category : Science
Languages : en
Pages : 464
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Book Description
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.
Author: Marlene Zuk
Publisher: Univ of California Press
ISBN: 9780520240759
Category : Science
Languages : en
Pages : 260
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Book Description
In this book the author gives an eye-opening tour of some of the latest developments in our knowledge of animal sexuality and evolutionary biology. It exposes the anthropomorphism and gender politics that have colored our understanding of the natural world and shows how feminism can help move us away from our ideological biases. As she tells many amazing stories about animal behavior--whether of birds and apes or of rats and cockroaches--the author takes us to the places where our ideas about nature, gender, and culture collide. (Midwest).
Author: John Avise
Publisher: Oxford University Press on Demand
ISBN: 019536967X
Category : Science
Languages : en
Pages : 250
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Book Description
In this book, 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.
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309132975
Category : Medical
Languages : en
Pages : 287
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Book Description
It's obvious why only men develop prostate cancer and why only women get ovarian cancer. But it is not obvious why women are more likely to recover language ability after a stroke than men or why women are more apt to develop autoimmune diseases such as lupus. Sex differences in health throughout the lifespan have been documented. Exploring the Biological Contributions to Human Health begins to snap the pieces of the puzzle into place so that this knowledge can be used to improve health for both sexes. From behavior and cognition to metabolism and response to chemicals and infectious organisms, this book explores the health impact of sex (being male or female, according to reproductive organs and chromosomes) and gender (one's sense of self as male or female in society). Exploring the Biological Contributions to Human Health discusses basic biochemical differences in the cells of males and females and health variability between the sexes from conception throughout life. The book identifies key research needs and opportunities and addresses barriers to research. Exploring the Biological Contributions to Human Health will be important to health policy makers, basic, applied, and clinical researchers, educators, providers, and journalists-while being very accessible to interested lay readers.
Author: Bill Sullivan
Publisher: National Geographic Books
ISBN: 1426220561
Category : Science
Languages : en
Pages : 340
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Book Description
Why are you attracted to a certain "type?" Why are you a morning person? Why do you vote the way you do? From a witty new voice in popular science comes a clever, life-changing look at what makes you you. "I can't believe I just said that." "What possessed me to do that?" "What's wrong with me?" We're constantly seeking answers to these fundamental human questions, and now, science has the answers. The foods we enjoy, the people we love, the emotions we feel, and the beliefs we hold can all be traced back to our DNA, germs, and environment. This witty, colloquial book is popular science at its best, describing in everyday language how genetics, epigenetics, microbiology, and psychology work together to influence our personality and actions. Mixing cutting-edge research and relatable humor, Pleased to Meet Me is filled with fascinating insights that shine a light on who we really are--and how we might become our best selves.
Author: Jacques Balthazart
Publisher: Oxford University Press
ISBN: 0199838828
Category : Medical
Languages : en
Pages : 201
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Book Description
This text reviews what research on animals can tell us about the biological factors that control human sexual behavior and orientation.
Author: Aleksandr F. Smirnov
Publisher: Scientific Research Publishing, Inc. USA
ISBN: 1618963902
Category : Science
Languages : en
Pages : 118
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Book Description
Gender (sex) is a set of morphological and physiological characteristics of the organism underlying sexual reproduction, the essence of which is reduced to fertilization, i.e. the fusion of male and female gametes (gametes) zygote, which develops into a new organism.Sexual reproduction of a species is considered as one of the mechanisms of its homeostasis. Thanks to this mechanism, numerous species have an evolutionary advantage. In the book, two authors will discuss the types of genetic sex determination and differentiation, mostly in multicellular animal organisms. Sex determination is both genetic and environmental process, the sex of an individual being established through an alternative physiological solution. There are two main postulated mechanisms of sex determination: genetic (GSD, Genetical Sex Determination) and environmental (ESD, Environmental Sex Determination).
