Chapter 11 questions - Chapter 11 Module 11.1 Sex and...

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Chapter 11 Module 11.1 Sex and Hormones 1. Organizing effects of sex hormones a. What is an advantage of sexual, as opposed to asexual, reproduction? b. What is an advantage of hormonal communication, compared to communication by neurotransmitters? c. Name the three types of sex hormones. What are three ways in which they exert their effects? d. What is a sex-limited gene? How do sex-limited genes produce sex differences in physical characteristics and behavior? e. Distinguish between organizing effects and activating effects of hormones. . f. What is the SRY gene? Describe the chain of events that result from its presence during development. g. What are Mullerian ducts? What are Wolffian ducts? What directs the survival or regression of these ducts in males and females? h. When is the sensitive period for testosterone’s effects on rats? On humans? i. Describe the effects of testosterone injections on female rats during the last few days before birth and the first few days after birth. j. What happens if a developing mammal is exposed to neither androgens nor estrogens during early development? Which hormone is required in low amounts for brain differentiation in females? k. By what mechanism does testosterone exert its effects on the hypothalamus in rodents? l. What are two sex differences in the structure or function of the hypothalamus? m. What is the role of alpha-fetaprotein? n. What are some nonreproductive characteristics that may be influenced by prenatal hormones? 2. Activating effects of sex hormones a. Which hormones can restore male-typical sexual behavior in rodents following castration? What is the most effective hormone treatment for restoring female- typical behavior? b. What is the pudendal nerve? What are estrogen’s effects on its function? c. What brain area may facilitate male-typical behavior in males? d.
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This note was uploaded on 02/02/2009 for the course BUSG 1303 taught by Professor Schwartz during the Fall '08 term at University of Cincinnati.

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Chapter 11 questions - Chapter 11 Module 11.1 Sex and...

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