Telomeres are
A) cloudy areas that form in the lens of the eye.
B) immune cells that patrol for foreign substances.
C) protective tips on the ends of chromosomes.
D) unstable oxygen molecules that are byproducts of metabolism.
C
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Quentin is a stay-at-home dad who writes a syndicated sports column
He and his wife split the housework, the childcare duties and the cooking as much as possible, although Quentin does end up doing the "soccer mom" thing more than his wife as she is a trial lawyer and often out of the house. They are both very comfortable with this arrangement, and in terms of gender, it is likely they are also both __________ a) androgynous. b) undifferentiated. c) biased. d) homosexual.
Your sister is pregnant and learns that she will have to some prenatal exams. She has always been terrified of needles. Which procedure is she most unhappy about?
chorionic villus sampling ultrasound amniocentesis urinalysis