To Dr David Barton:
Thank you so much for your post on the chromosome news group. I very much
agree with your advice. The reason for my question was that the genetics
lab (run by qualified geneticist) said they had never seen this band on
six before. Since then someone at the Univ of Calif San Francisco has said
that he has seen it but rarely. Another source--Southeast U.S. says he
sees it "all the time". These are all experts!! The parents of course
wanted as much information as possible; but they got some good news and do
not have to seek further advice--the father has this same extra DNA.
