Most Recent Common Ancestor Calculator
Number of y-chromosome markers:				Based on the Infinite Alleles Model. Note that this model underestimates the time to MRCA. This is relatively insignificant as sample markers increase beyond 25, but can be significant with fewer markers.
Average Mutation Rate:				Please enter the number of markers and the mutation rate. Current studies suggest a mutation rate of .0043. Results will include up to 5 mismatches. More mismatches than this are probably not useful for most genealogical purposes.