See Also: Lyonisation(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
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medicine(encyclopedia)
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Lyonisation (medicine)


Lyonisation -->
Lyon hypothesis
<genetics> Hypothesis, first advanced by Lyon, concerning the random inactivation of one of the two X chromosomes of the cells of female mammals.

In consequence females are chimaeric for the products of the X chromosomes, a situation that has been exploited in female Negroes (who are heterotypic for isozymes of glucose 6 phosphate dehydrogenase) as a means to confirm the monoclonal origin of papillomas and of atherosclerotic plaques.