Thread: Scared about how big my puppy will be
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Old 07-23-2013, 08:43 AM   #353
amyazer
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Purebred-A x Purebred-B = F1 Hybrid Dog

F1 x Purebred-A = F1b Hybrid Dog

F1 x F1 = F2 Hybrid Dog

F1 x F1b = F2b Hybrid Dog

F2 x F2 = F3 Hybrid Dog
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