7 votes
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How is hereditary cancer risk estimated?

There are really two distinct questions here, but they are common. Is cancer heritable? Is cancer (or cancer risk) contagious? tl;dr Most cancer cases are not heritable. Some are. Heritable cases ...
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5 votes
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Is having a congenitally fused heart valve a hereditary condition?

Short answer: Yes. Fused leaflets? The condition you’re referring to is known as Congenital bicuspid aortic valve (BAV). It is the most common congenital heart valve abnormality, present in 1-2% of ...
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  • 4,355
5 votes
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Fainted history in both myself and my father. Can it be related?

There is, unfortunately, no yes or no answer to this, especially not on-line. However, these information can help: There can be various underlying causes of fainting, mostly cardiovascular or ...
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  • 2,803
4 votes

Is having a congenitally fused heart valve a hereditary condition?

I would just like to add one point. There are 3 important causes of aortic valve stenosis: congenitally bicuspid aortic valve, senile calcific aortic stenosis and rheumatic heart disease. In advanced ...
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  • 950
2 votes
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Are dimples and cleft-chins (aka dimple chins, butt chins) genetic?

DIMPLES Professor McDonald, citing limited research, concludes dimples have been mislabeled as genetically inherited and as a dominant trait. However, the University of Utah considers dimples an "...
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  • 1,848
2 votes
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Rheumatoid arthritis heritability

Odds vary. The most straightforward study I could find was Koumantaki et al. (1997), which found several odds ratios for developing rheumatoid arthritis: 4.4 for individuals having a first degree ...
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  • 1,838

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