Children typically have some characteristics not seen in either of their biological parents. Which one of the following is the most common source of these unique characteristics?
a. Some segments of genetic material at the equivalent locations in paired chromosomes cross over, essentially swapping places.
b. Grandparents or great-grandparents may chemically shield certain genes, with these shields eroding only gradually over several decades.
c. When certain aspects of the meiosis process are delayed by several weeks, new genetic patterns inevitably emerge.
d. Certain segments of genetic material erratically and unpredictably leap from their initial chromosome to a very different one, typically as a result of high hormone levels in the mother.
Question 2
Twelve-year-old Lacey and her mother are a two-person family. Mother's long-term boyfriend has just moved in with them. What effect will the move have on Lacey?
a. Chances are about 80 that Lacey will be the victim of child abuse.
b. Lacey will almost certainly show an increase in misbehavior at school.
c. If Lacey has a warm, loving relationship with him, she will probably adjust well.
d. When she reaches adulthood, Lacey will probably have trouble forming stable relationships with others.
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