For most of us, the goal of genetic genealogy is to identify how our DNA matches are related to us. We want to determine our common ancestor or identify an ancestor who was previously unknown to us. Chromosome browsers help us do that. By determining that an autosomal DNA segment was inherited from a certain ancestor, we can use that segment information in the future to identify matches whose connection to us is unknown. Chromosome browsers also help us triangulate segments of DNA data shared with 2 or more genetic matches. When segment triangulation is achieved, we are able to...