Introduction. The common disease-common variant (CDCV) hypothesis posits that common, interacting disease alleles underlie most common diseases, perhaps in association with environmental factors [1] , [2] .imilarly, The prevalence of the disease in the population is then: and the PAF is: The sibling recurrence risk is given by: where V a is the additive genetic variance divided by Îº 0 2, V d is the dominance genetic variance divided by Îº 0 2 and K = Îº/Îº 0.
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10 Beauty Benefits Of Marula Oil For Skin, Hair, And Nails. 10 Beauty Benefits Of Marula Oil For Skin, Hair, And Nails. In recent years, Marula oil has been the hot shot of the beauty industry. In fact, in 2008, companies spent roughly 20 million dollars on Marula oil for product manufacturing.1 Clearly, thereâs something special about this oil.