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.
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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.