Genetically speaking, the only difference between men and women is that where women have two X chromosomes, men have one X and one Y. It is surprising that one chromosome difference out of our total of forty-six can have such an important consequence, but it does. Is this relatively small genetic variance really sufficient to explain the huge ...
Genetically speaking, the only difference between men and women is that where women have two X chromosomes, men have one X and one Y. It is surprising that one chromosome difference out of our total of forty-six can have such an important consequence, but it does. Is this relatively small genetic variance really sufficient to explain the huge differences between the sexes, not just the physical but the psychological, social, even cultural? Drawing on his own work at the forefront of modern genetics and the exciting theories of evolutionary biology, Bryan Sykes explores the mysteries of the science of sex and gender, and takes a scientific look at what makes men tick. He addresses the most basic issues of why there are only two sexes in humans and, even, why there is sex at all. He also raises more far-reaching questions, such as: Is there a genetic cause for men's greed, aggression and promiscuity?, Is there such a thing as the male homosexual gene?, And what do genes tell us about the future for men? Sykes' conclusions will surprise some people and are bound to cause controversy. The all-important male Y chromosome is getting smaller and, as the generations pass, the female genome is taking over as it cannibalizes parts of the Y chromosome. Women are winning the evolutionary battle of the sexes. The shocking conclusion is that men, slowly but surely, are headed for extinction.
Very good. The inside story of the Y chromosome's fatal flaw, as told by one of the world's leading geneticists. Male reproductive fragility has been the subject of much highly publicized recent research. Is it possible, asked the New York Times, that men face extinction? Bryan Sykes examines the validity of these shocking reports, focusing on the defining characteristic of men: the Y chromosome in their DNA. Guiding his readers through chapters like "The Blood of Vikings" and "Ribbons of Life, " Sykes masterfully blends natural history with scientific fact, elucidating the biology of sexual reproduction, modern genetics, and evolutionary biology. He reveals that, while the Y chromosome makes man's existence possible, it also carries within it the seeds of his destruction. Timely and fascinating, this major work covers a wealth of controversial topics, including whether there is a genetic cause for male greed, aggression, and promiscuity; the possible existence of a male homosexual gene; and what, if anything, can be done to save men from a slow, but certain, extinction. ex library, case in very good shape, tapes work well, will mail with delivery confirmation, $$
Publishers Weekly, 2004-03-15 Well-known Oxford geneticist Sykes (The Seven Daughters of Eve), in this lively and thought-provoking book, gives a genetic twist to the battle between the sexes. All human existence, he says, stems from the battle between the X and Y chromosomes to further their own reproduction at the expense of the other. The Y chromosome is passed on only by fathers, while mitochondrial DNA is passed on only by mothers. Sykes shows that many members of several Scottish clans (most notably the Macdonalds) can be traced via their Y chromosomes back to a common ancestor. Researchers have also been able to trace the extent of Viking settlement and intermarriage in the British Isles and northern Europe through Y chromosome distribution. Sykes's argument for a genetic role in homosexuality will undoubtedly be controversial. Using Dean Hamer's pedigrees, he claims that evidence points less to a "gay gene" than to mitochondrial DNA playing the leading role in a Machiavellian plot to further its own reproduction. Sykes concludes by noting that, as evidenced by declining sperm counts and high percentages of abnormal sperm, among other variables, the Y chromosome is a genetic mess and is deteriorating so quickly that men could become extinct. Those who find that a happy thought will want to snap up this book, as well as readers interested in learning what our chromosomes tell us about where we came from and where we may be headed. 6 illus. (Apr.) Copyright 2004 Reed Business Information.
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