Imagine That a Researcher Is Constructing a Pedigree for a Trait

Multiple Choice

Imagine that a researcher is constructing a pedigree for a trait he expects to show recessive inheritance in humans. What are the likely characteristics of this trait?

A) This trait may not occur within every generation of a familyit could be said to "skip" generations.
B) The parents of children who have this trait may not themselves be affected.
C) Both males and females within a given family can have this traitit doesn't appear to be sex-specific.
D) There may be instances of first-cousin mating in this pedigree, resulting in affected children.
E) All of these choices are correct.