Do Y chromosome analyses sometimes match, but not at every point?
Yes. Over a period of many years, a small number of mutations can be counted on to appear, so there may be one or more points where the Y-Chromosome analysis does not match exactly. Top Q9. If no Y-Chromosome match is found, what does that show? Answer: It demonstrates to a very high degree of probability that the two males analyzed do not share a male ancestor. Although this is true for the two individuals tested, it may not be true for the family groups of the individuals who were tested, because there are a number of sources of non-paternal events. Top Q10. My maiden name is HILL and I would love to have this information, but I am female and have no brothers and my father has passed on now. There are no living males with surname HILL in my family, only male cousins named HILL, some quite distantly related. Answer: Your male cousins probably have the same Y-DNA as your father and his male ancestors with surname HILL.
