Paternity tests always give a clear yes or no answer. If the father is unavailable, there are other DNA tests we offer to determine paternity. For example, a sibling DNA test may be used to test for possible brothers and sisters. You can also perform a grandparent DNA test for the alleged grandparent and grandchild. The aunt/uncle avuncular DNA test with a full sibling of the alleged parent would also be convincing. You may also want to do a Y-DNA test if two or more men want to find out if they are related through the male line. This test is also always conclusive. If more than one paternal relative is available to participate in a DNA test, consider doing a family genetic reconstruction DNA test instead. If you are not certain which choice is right for your situation, one of our Genetic Consultants would be glad to provide you help. Just give us a call at 1-855-362-5224.