Biologists have found an exception to one of the fundamentalrules of genetics, a discovery that promises to provide newapproaches to the control of cancer and other genetic diseases.
Researchers say the finding suggests cancer could be combattedby restoring a process called imprinting, rather than by trying torepair a defective tumor gene.
"This implies that, in some situations, it may not be necessaryto kill cancer cells. It might be possible to reason with them oreducate them," said Samuel Broder of the National Cancer Institute.
Scientists have long assumed that the source of a gene, thefundamental unit of inheritance, is irrelevant. Everybody …
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