Word: teratocarcinoma
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...community was rocked last week by the news that a strain of albino lab mice used by cancer investigators everywhere was genetically contaminated. The tainted mice were discovered by University of Wisconsin Biologist Brenda Kahan and her colleagues while they were growing a primitive type of tumor called a teratocarcinoma. A puzzling enzyme uncharacteristic of the breed kept showing up hi the host animals, a common strain known as BALB/c. Careful genetic tests soon confirmed suspicions: the mice were not the purebreds promised by their supplier, the Massachusetts-based Charles River Breeding Laboratories, Inc. Since the company is the world...
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