Cloning endangers animals' genome. .

PositionBrief Article

Study results from the Massachusetts Institute of Technology, Cambridge, and the Whitehead Institute for Biomedical Research confirm that the cloning process jeopardizes the integrity of an animal's entire genome. This implies that cloning for the purpose of producing a human being is unsafe and unethical.

Scientists had suspected this based on studying a mere dozen genes, but the current study expansively surveyed 10,000 genes for abnormalities. Using DNA arrays, researchers from the lab of professor of biology Rudolf Jaenisch found that approximately one out of every 25 genes was abnormally expressed in placentas from cloned mice and, to a lesser...

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