The typical sex chromosome pattern for males is _____
a. XX c. XYY
b. XY d. XXY
B
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What percentage of boys and girls have engaged in masturbation by the age of 15, respectively?
A. 25 percent; 25 percent B. 80 percent; 20 percent C. 50 percent; 35 percent D. 65 percent; 10 percent
Suppressive HSV therapy with antiviral drugs ____
a. does nothing to prevent symptoms from recurring b. prolongs the duration of an outbreak c. reduces the risk for infecting sexual partners with genital HSV-2 d. will not prevent itching or scarring
According to the hierarchical network model, retrieval of the fact that a salmon eats requires
a. no inferences. c. two inferences. b. one inference. d. four inferences.
Which of the following is true regarding andropause?
A) Andropause is a gradual decline in a man's production of male sex hormones. B) The scientific community is undecided about the existence of andropause. C) Andropause has been found only in men who have been circumcised. D) Andropause is a sudden decline in sex hormones experienced by some men.