Re: genetics and coronary artery disease

What is being inherited by each male member of your family is more 
propably a heart valve defect than a disease. Inherited physical 
abnormalities do not necessarily effect every male member of a family 
tree. You can look at your family tree and something called the 
coefficient of relatedness by which you can see genetic defects can 'hop' 
generations. Each of us inherit 50% of our parents genes; 25% of our 
grandparents';12.5% of great-grandparents etc. An interesting guide is how 
often twins appear in families,often genetic inheritance follows the same 
patern.