Consider the same two families from question 1 , but this time Miley (II-4) has a child with Dawson (I-3; it is a big scandal). Neither Miley nor Dawson has Wilson's disease. Wilson's disease is caused by a mutation in the ATP7B gene. What is the probability that their child will be homozygous for the dominant allele at the ATP7B locus? A. 0 B. 1/6 C. 1/4 D. 1/3.