A Separate Creation
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- 8,49 €
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- 8,49 €
Publisher Description
In August 1991 newspaper headlines around the world announced an amazing discovery: a difference in the brains of heterosexuals and homosexuals. In 1993 American scientists claimed they had discovered a gay gene. Sexual orientation, it now seems, is not a choice, not a disease nor a faddish whim, but a fundamental biological part of who we are.
Chandler Burr's ground-breaking work is the first and only comprehensive look at this revolutionary new science, biology on the farthest edges of current scientific practice. A Separate Creation: How Biology Makes Us Gay takes us into laboratories where researchers are using incredible technologies to discover what makes us straight or gay. From studies of male rats that ovulate and a species of African animal in which the female has a penis, to the political fire-storm surrounding the claim of a gay gene, from a new silicon chip made of human DNA that could discern the sexual orientation of the foetus in a woman's womb, to a working theory that homosexuality is a genetic/bacterial condition that could be 'cured' with an antibiotic, Burr explores this fascinating and often ethically ambiguous territory with clarity and an objective eye.
PUBLISHERS WEEKLY
Burr's detailed, elegantly written report takes us to the front lines of research into a possible biological or genetic basis for homosexuality. He dispassionately reviews the scientific and political controversy surrounding the report in 1991 by gay British neuroanatomist Simon LeVay that a cluster of cells in the brain's hypothalamus is larger in straight men than in gay men. National Cancer Institute molecular geneticist Dean Hamer's 1993 finding that a specific region of the X chromosome is linked to homosexuality in some men led to intense debate over how a "gay gene" might function in creating a homosexual orientation. Boston University geneticist Richard Pillard theorizes that the sexual centers of gay men's brains are not "defeminized"--a hormone-regulated process that routinely occurs in the embryonic brains of male heterosexuals. Burr, whose 1993 cover story in the Atlantic Monthly led to this book, ponders the ethical issues swirling around Affymetrix, a Santa Clara, Calif., company that is building a semiconductor chip made of silicon and human DNA that may make possible widespread testing for a gay gene. Illustrated. Author tour.
