Webster has just been informed that he is suffering from a visual problem that is destroying retinal cells responsible for central vision and that he will soon find reading nearly impossible. This diagnosis indicates that Webster has

A fellow worker was present at his son's birth. He was really upset because his son was born with a white substance all over his skin and no one told him what the problem was. You should tell him ____

a. that it was probably cancer b. that his baby probably had something wrong with it. You have never heard of such a thing. c. that the white substance was vernix and many babies have that at birth. It protects their skin in utero. d. that that was a greasy like substance that is used to help the baby emerge from the birth canal. They will wash it off later.

S.J. is most likely to have DZ twins if _____________________

a. she has Asian biological parents b. she is in her late teens c. she is concerned about gaining too much weight and severely restricts her calorie intake d. her mother had DZ twins