Y Not?

[darkerhorse]

Has any male found a (close) male cousin who had a different Y haplogroup than you?

What's the probability of having the same Y haplogroup as a male, 2nd surname cousin once-removed? Does it approach 100%?

[darkerhorse]

Of course, I meant:

Has any male found a (close) male surname cousin who had a different Y haplogroup than you?

[MarcuccioV]

I have a few that are different, but it appears to only be less refined versions of the same y-DNA haplotype group.

ie: RM-269 (theirs, less refined) & R-Z19 (mine, more refined)...

I would assume a totally different haplotype would indicate an adoption or illegitimacy.

[darkerhorse]

Thanks.