|MadSci Network: Genetics|
Starting with parents, grandparents, great grand parents, it seems 2^40 is the answer. But that's over a trillion humans! More people than have ever lived. Impossible! After 41 generations there's twice as many, 2 trillion. Incest and intermarrages could cut the numbers somewhat. Also if humanity began with 2 "parents", there should be a method to began reducing the population as we count ancestors backwards. Obviously, something is wrong here. My reasoning is pathetic. Please explain your answer, so I can understand what is happening. Words, math, graphs,and references would be deeply appreciated. Many thanks, Bob
Re: How many ancestors does the average person have after 40 generations?
Try the links in the MadSci Library for more information on Genetics.