What genetic outcome occurs if two hairless Xolos, both carrying the recessive allele, reproduce?
Answer
They can produce a coated puppy
The genetic reality of the Xoloitzcuintli involves one dominant allele responsible for hairlessness and a recessive allele that results in the presence of hair. When both parents are phenotypically hairless, they must still carry the recessive allele for hair in their genotype to maintain the genetic diversity necessary for breed health. If both parents happen to contribute this recessive allele to their offspring, the resulting puppy will inherit two copies of the gene for hair, thus exhibiting the coated phenotype. Therefore, two hairless dogs can indeed produce a puppy with a short, smooth coat over its entire body, demonstrating the recessive nature of the coat trait.
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