The pedigree below shows two generations of individuals within a family. The pedigree shows that a daughter has a genetic trait, even though neither of her parents nor her siblings have the
trait.
7. How can the daughter have the genetic trait if no one else in the family has it?
A. The trait is determined by a recessive allele.
B. The trait is not inherited.
C. The trait is determined by a dominant allele.
D. The trait is passed only from female to female.