What genetic mechanism explains the Red Shoulder color variety recognized by the American Poultry Association?
Answer
Incomplete dominance of the white gene when paired with red genes
The Red Shoulder coloration recognized by the American Poultry Association is the result of incomplete dominance. This occurs when the dominant white gene interacts with the red genes present in the bird's makeup, but instead of one completely masking the other, an intermediate or blended appearance—the red-shouldered pattern—is expressed. This contrasts with the pure White variety, which is attributed solely to the presence of the dominant white gene acting fully.
Related Questions
What is the scientific binomial nomenclature assigned to the Yokohama chicken?What name were the original long-tailed fowl exported from Yokohama known as in Japan?Which individual initiated the selective breeding that resulted in the modern Yokohama chicken in Germany?To which taxonomic family does the Yokohama belong, along with pheasants and partridges?What key trait distinguishes the annual feather cycle of the Yokohama from the ancestral Onagadori?What specific structural protein requires a high-protein diet to sustain the Yokohama's dramatic tail growth?Which breeds were utilized in outcrossing efforts to ensure the continuation of the Yokohama line after early transport losses?What conservation status does The Livestock Conservancy assign to the Yokohama chicken population?What genetic mechanism explains the Red Shoulder color variety recognized by the American Poultry Association?What major divergence in breed standards exists between the UK and other regions regarding the Yokohama designation?