What’s The Answer? Open Thread (Genotype/Penetrance Function)

BioStar is a site for asking, answering and discussing bioinformatics questions. We are members of the community and find it very useful. Often questions and answers arise at BioStar that are germane to our readers (end users of genomics resources). Every Thursday we will be highlighting one of those questions and answers here in this thread. You can ask questions in this thread, or you can always join in at BioStar.

Question of the Week:

How do I compute the proportion of cases/controls for each genotype from the penetrance function?

The question isn’t actually about a specific resource, but since the answer is clear and we do deal with a lot of genotype resources, I thought this was applicable to this thread.