Chapter 17 Sex and the Brain

Chapter Seventeen Sex and the Brain
1. At what point in development is a person's sex usually determined? Choose the correct
option.
A) When the gonads differentiate
B) At the time of fertilization
C) Midgestation
D) Puberty


2. What is the basis of X-linked disorders? Choose the correct option.
A) Defect in the single X chromosome in males
B) Defects that occur only in females
C) Defects related to a normal SRY gene on the X chromosome
D) Defects related to the paternal origin of the X chromosome in males


3. During what developmental period are the gonads undifferentiated? Choose the correct
option.
A) Throughout fetal development
B) Until puberty
C) The first 6 weeks of gestation
D) The gonads are never undifferentiated.


4. From which structure are luteinizing hormone (LH) and follicle-stimulating hormone
(FSH) released? Choose the correct option.
A) Gonads
B) Hypothalamus
C) Anterior pituitary gland
D) Posterior pituitary gland


5. Which of the following is the result of sympathetic activation during the male
sexual response? Choose the correct option.
A) Engorgement and erection
B) Emission
C) Secretion of lubricating fluids
D) Relaxation of smooth muscle cells in the arteries penis


6. When prairie voles copulate, which of the following is observed in males? Choose
the correct option.
A) Levels of vasopressin rise sharply.
B) Levels of vasopressin drop sharply.
C) Levels of oxytocin rise sharply.
D) Levels of oxytocin drop sharply.

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