I never SAID I was of Celtic descent...only that my Y-chromosome was pure Celt. And, if you knew your biology (as well as you know arithmetic) you would understand that the Y-chromosome does not get diluted over time in the patrilineal line as other non-sex chromosomes can. So, it is more equal than others.
I didn't mean to criticize you, and if I offended you I apologize. It's just that I'm sick of people taking a "DNA test" and claiming to be Native American or something when that is just a microscopic part of their gene pool.
I know that the Y-chromosome can never be diluted, and that every other gene (found in males) can be, which is why the Y-chromosome is the one used to research ancestry among males (just as matrilineal DNA is used for females). A person could be 99% of, say, African descent, and 99% of his genes would have come from Africa, yet have a Y-chromosome coming from someone from Iceland. As for the Y-chromosome being "more equal than others," that would only be true for purposes of genetics if there were immutable characteristics (other than maleness) that every person with that particular Y-chromosome possesses. You're right that I'm no expert on genetics, and perhaps you can tell me what traits are affected by having a particular Y-chromosome.