Reductionism is a philosophical theory used to explain different phenomena from simpler phenomena. This idea represents a useful methodology to understand complex processes, and it is widely used in molecular biology and genetics research fields
E. The man had one dominant and one recessive allele.
Explanation:
Woman marries a man with Wilson disease, a autosomal recessive disorder. The woman doesn't have the disease, the son got it. Therefore, the man has another dominant allele.
