You can convert from generations to years by multiplying the number of generations by an average number of years between generations. In general, you can use an average of 25 years per generation, although the [...]
When using the FTDNATiP™ calculator in myFTDNA, the box in which to enter the number of generations appears only when you are not comparing a perfect match, i.e., when there are mutations between the two [...]
Yes, a higher number of compared Y-DNA STR markers does increase the power and accuracy for Time to Most Common Ancestor (TMRCA) calculation. However, there are diminishing returns after a certain number of markers. For exact [...]
FTDNATiP™ uses both the number of mismatches and the mutation rates of individual markers in calculations. This means that although two men may have the same number of mismatches, they may not have the same [...]
These are cumulative probabilities. That is the key to understanding something that initially seems counter intuitive. Let's use an example for a specific situation of one mismatch in 37 markers. Before inputting your information, the [...]
In many cases, you are more likely to be recently related to a match who also shares your surname. However, there are several reasons why recently related individuals may not share the same surname (undocumented [...]