Want to breed my Brat with a full bred Boston.She's 3/4 Boston and 1/4 rat . Is this possible since she's not a full bred and isn't papered?
It is possible to breed your Brat with a full breed boston. However, it will not be a full breed since Brat is normally a mixture of Boston Terrier and the Rat Terrier. Get more information on http://www.dogbreedinfo.com/brat.htm.
Yes.... Mutt's reproduce all the time. and if you believe that all domesticated dogs descend from wolves, then you will know that no dog is a true full breed dog except the wolf.