If a pure-breeding wired-hair terrier (WW) is crossed with a pure-breeding smooth-hair terrier (ww), and a puppy with a wavy hair is produced, the simplest explanation is ____.
A) a mutation has occurred
B) hair texture is an X-linked trait
C) incomplete dominance
D) hair texture is a lethal trait
E) codominance

Question

If a pure-breeding wired-hair terrier (WW) is crossed with a pure-breeding smooth-hair terrier (ww), and a puppy with a wavy hair is produced, the simplest explanation is ____.​
A) ​a mutation has occurred
B) ​hair texture is an X-linked trait
C) ​incomplete dominance
D) ​hair texture is a lethal trait
E) ​codominance

Quizplus · Accepted Answer

Incomplete dominance is the simplest explanation for the appearance of a wavy hair phenotype in the offspring of a cross between a pure-breeding wired-hair terrier (WW) and a pure-breeding smooth-hair terrier (ww). This genetic principle suggests that neither allele is completely dominant over the other, resulting in a phenotype that is a blend of both parents' traits.

If a Pure-Breeding Wired-Hair Terrier (WW) Is Crossed with a Pure-Breeding