IBD vs. IBS When you are matched up to a potential family member at one of the genetic testing services, they do so by finding segments of DNA where the alleles are the same over a minimum distance of both your and your match’s DNA. At least that’s what is supposed to happen. There are several things that can go wrong when matching segments between people and here we’re going to discuss the unfortunate incident of the IBS cousin. No, IBS…Read More … Read entire article »