This project utilises Y-DNA testing as a tool for genealogical research on the Germanic surnames KAP, KAPP, KOPP, KOP, KOPF, KUP, KUPP, ZUPP, and variations, especially the Anglicized spelling, 

CUPP, to which many of these converted in the U.S. 

Human gender is genetically determined by a pair of chromosomes that are, by convention, designated XX (for females) and XY (for males).  

Only males have the Y-chromosome, and because the male Y-chromosome is handed down intact from father to son through the generations 

(except for infrequent mutations), just as surnames are handed down from father to son, Y-DNA testing can identify common ancestors on the direct male line, that is, the patrilineal line.  

Y-DNA testing is an extremely powerful tool for supporting pedigrees and for breaking past brick walls where paper genealogy has failed to go.

If you are researching surname CUPP or any of its variations, please consider having a male family member submit a sample to the project.  I consider it the duty of every male to be Y-DNA tested.  

Your descendants will bless you for it!

If you are English COPE, I recommend joining the COPE Y-DNA Surname Project, and if you are English COBB, I recommend joining the COBB Y-DNA Surname Project.  

If you are uncertain of your origin, having your DNA tested should reveal whether your origin is German or English (and you can be moved to the correct project if you guessed the wrong one). 

Please see Project's Main Web Site for more information.