Take yourself as an example. Go up one generation, and you have two parents, and each of those parents have two parents... Generation Number of People in Generation Percentage of You from One Individual in Generation 0 (You) 1 100% 1 2 50% 2 4 25% 3 8 12.5% 4 16 6.25% 5 32 3.125% Therefore, if you go up 5 generations, one of those people contributed roughly 1/32 of their genes to you (~3.125%). The further back you go, the less of an impact an individual from that generation would have on your t…