The C Locus, or C locus, is a specific location on a chromosome that plays a crucial role in determining coat color in animals, particularly in cats and dogs. It is part of a larger genetic system that influences pigmentation, affecting how colors and patterns appear in the fur. In cats, the C Locus has several alleles, including the dominant allele that produces a full range of colors and the recessive allele that leads to a color dilution. Understanding the C Locus helps breeders and geneticists predict and select for desired coat colors in various breeds.