In puppies, only one merle gene causes the coloring sample: dapples, splotches or maybe a mottled look. Some breeders choose to breed two puppies With all the gene, building litters of double merles. But this is harmful. Why? A double-merle Pet is twenty five% more likely to be white http://trentonmfxqh.blogrelation.com/885843/merle-pitbull-an-overview