Using the markers from the male Y chromosome, which
pass virtually unchanged from father to son, several things can be determined. It is possible, for instance, to determine which lines of CRAIN's in the United States are related and possibly even link back to related lines in Europe. Additionally it may be possible to learn which Haplogroup or Haplotype
your markers place you in and what part of the world your paternal Y ancestor originated. The area may or may not be very specific. But it is very interesting!
Here is a page listing all the known surname studies. http://freepages.genealogy.rootsweb.com/~allpoms/genetics1a.html
Family Tree DNA of Houston, TX:http://www.familytreedna.com/
Has an excellent reputation. If you would like to join this study, please contact Randy Crain, if you are a male and your surname is CRAIN/CRANE or a variant. The cost for testing is $99. plus $2.00 shp. for a 12 marker test. This represents a substantial
discount for our group members. It may be necessary to upgrade later to the 25 marker test to determine different lines within the last 300 years. (approximately $80. more, less if the 25 marker test is ordered initially). Payment would be sent directly to FTDNA.