Kendall the full grown Boston / Basset mix (Basston) was bred from a purebred Boston Terrier and a purebred Basset Hound.
The Basston is not a purebred dog. It is a cross between the Basset Hound and the Boston Terrier. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.
"This is Baxter a Basston (Boston Terrier / Basset Hound mix) when he was 1 year old. He was the best dog ever! He was always willing to please us and was very playful."