Originally posted by McCray
CDY a and b are the fastest-mutating Y-DNA markers known (to my knowledge), so a mismatch on either of those markers (or both) isn't especially significant (i.e., it doesn't in itself show that you are especially unrelated to the mismatched person). A perfect match on both of them, however, is potentially very significant, provided that most of the rest of the markers match.
Here's a table that will show you the relative mutation rates:
http://freepages.genealogy.rootsweb..../ratestuff.htm
The position in the results sequence doesn't have any bearing on how fast that marker mutates. You just have to look them up individually, or use the color-coding as a rough guide.
Leave a comment: