Word: defectives
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Dates: during 1990-1999
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Hereditary weakness can be introduced even when there is no underlying genetic defect at all. The biological interplay between individual genes can be extremely complicated, and breeding to enhance one characteristic can have unintended consequences. Vets believe the retinal disease that afflicts most collies may fall into this category. The gene responsible may lie very close to the one that gives collies their long noses and closely set eyes -- traits that have been deliberately emphasized by breeders. Says Dr. Donald Patterson, chief of the medical genetics section at the University of Pennsylvania's School of Veterinary Medicine: "Many people have...
Researchers have found a faulty gene that may be a cause of most prostate cancer. The defect prevents cells from making an enzyme that fights off carcinogenic chemicals. The discovery could lead to better blood tests and even a drug treatment for the disease...
...controversy over a defect in Intel Corp.'s popular Pentium microchip heated up as scientists and engineers accused the company of being too casual in its response to the problem. According to a Nov. 7 article in the Electrical Engineering Times, the flaw in the chip can cause computers to reach incorrect answers in complex division problems approximately once in every 37 billion calculations. Intel discovered the defect last summer, and has since corrected it, but it is offering free replacement chips only to customers with provably esoteric needs. "The chip is fine," said a company spokesman. "Statistically, the average...
...people, she says, the new findings suggest a protein is sending the wrong signal, resulting in lower metabolism and excessive hunger. "The implications for the moment are more psychological than medical or therapeutic," Gorman says. "We don't know how many of the obese people out there have this defect. But this does make the point they are fighting their own genetics."Post your opinion on theHealth & Medecinebulletin board...
...example, aborting a fetus with a fatal genetic defect may hold different implications than absorbing one in which the "abnormal" gene is less severe, as in Down's syndrome...