Sentences with phrase «phaeomelanin yellow pigment»
The superscript «y» is used to indicate that it allows the phaeomelanin yellow pigment to be expressed in the phenotype — in the tan parts of the two - color coat.
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This mutation affects both eumelanin and phaeomelanin pigments, so black, brown and yellow dogs are all affected by the dilution.
The second pigment, which varies from pale cream through shades of yellow, tan, and orange / red is called phaeomelanin.
«E», normal extension of black, allows the A-series alleles to show through, and «e», recessive red / yellow, overrides whatever gene is present at the A locus to produce a dog which shows only phaeomelanin pigment in the coat.
Even truer, for eumelanin (dark or black pigment) and phaeomelanin (yellow pigment) are the only chemically differentiated forms of melanin, the coat's color substance.