Which of the following events occur(s) during
the follicular phase of the menstrual cycle?
a. An ovarian follicle enlarges.
b. A zona pellucida forms around the oocyte.
c. An oocyte completes meiosis I.
d. Estrogen levels increase.
e. All of these occur
E
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Which one of the following is NOT a component of each monomer used to make proteins?
A) a phosphorus atom, P B) an amino functional group, NH2 C) a side chain, R D) a carboxyl group, COOH
A woman heterozygous for color blindness (an
X-linked recessive allele) marries a man with normal color vision. What is the probability that their first child will be color blind? a. 25% b. 50% c. 75% d. 100% e. none of these
What force is most important in returning blood back to the heart in the veins?
A) contraction of the skeletal muscles in the body B) gravity C) contraction of the ventricles on the heart D) osmotic pressure of proteins in the blood
Dr. Howard asks a group of men to identify themselves by their gender before giving them a test of heroism. What concept is Dr. Howard demonstrating?