Which gene is linked to the Xoloitzcuintli's dominant, inherited hairlessness trait?
Answer
FOXI3
The striking characteristic of hairlessness in the Xoloitzcuintli is attributed to a specific genetic marker, which is not a result of injury or disease but rather an inherited trait governed by a dominant gene. Scientific studies have specifically identified the mutation responsible for this defining feature within the *FOXI3* gene. This genetic marker is fundamental to understanding the breed's appearance, and its influence extends beyond just the coat, impacting other physical characteristics as a demonstration of complex genetic interaction within the organism.
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