Articles about American Pit Bull Terrier
...to start reading this article from the beginning please click on here...When homozygous, the coat can be clear gold, but often has black tipped hairs, especially on the head and down the back. (at) - BLACK AND TAN PATTERN (BICOLORED): The typical tan points are above each eye, on each cheek, on the lips and lower jaw, extending under the throat, two spots on the chest, below the tail, and on the feet to the pasterns and hocks, extending up the inner sides of the legs. These tan points can occur on black or seal, blue, chocolate or red solid colored dogs. A great deal of variation can occur with these tan points, even within the depth of the pigment. In some dogs the tan points are not always marked and the color contrast is not always distinct. Locus B Series - Black/Brown Pigment (B) black pigment (b) brown pigment This locus contains only two alleles, the dominant (B) producing black skin and nose pigment and the (b) recessive allele, producing brown pigment. In dogs that are red or buckskin, the Locus (B) alleles are expressed in skin color, most visible around the eyes and nose. The black nose indicates the genotype is (BB) or (Bb), both which would be expressed as black nose because of the dominance of the (B) allele. A light brown or red nose is (bb), or homozygous recessive. Being homozygous recessive, both parents must contribute one recessive (b) gene to the offspring to produce the red nose.
...to continue reading this article please click on here... 
