Only males have Y chromosomes, so only male COBB (or variant) men can test. If you are female, you can have a male COBB (or variant) relative submit a sample for your line. To participate meaningfully, testees will need to share their direct male line ancestry back to the earliest known COBB (or variant) as a pedigree (excluding living persons). Please see the "Cobb & Cobbs website at cobbandcobbs.com for more information about the results found so far.