In dogs, wire hair (H) is dominant to smooth (h). A dog that has smooth hair is crossed with a dog that is heterozygous for wired-hair. What percentage of the offspring are expected to have smooth hair?

A. 0%
B. 25%
C. 50%
D. 100%

B. 25%

Punnett square:

| H h
-------------------
h | Hh hh

Therefore, 25% of the offspring are expected to have smooth hair.