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Question: Explain how incomplete penetrance, variable expressivity, pleiotropy, and genetic heterogeneity can affect the severity of a disease in a family.

Question: A person can lower risk of preventable types of cardiovascular disease by exercising regularly and following a diet low in saturated fats and simple carbohydrates and high in fruits and vegetables. Why are these approaches ineffective against long QT syndrome?

Question: Explain how the molecular bases of the various forms of long QT syndrome make genetic heterogeneity very likely.

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Category:- Biology
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