Chap 8 p. 232-247 Sexual Differentiation and Orientation, and lecture/hand-outs

Question

Chap 8 p. 232-247 Sexual Differentiation and Orientation, and lecture/hand-outs 1. Describe how sex is determined in each of the following developmental stages: chromosomes, gonads, hormones, internal reproductive organs, external genitals, puberty & secondary sexual characteristics 2. What is the role of the SRY gene? 3. Why is anti-mullerian hormone (AMH) necessary for development of the male internal reproductive organs? 4. What are the genetic (chromosomal) factors that can produce sexual variations, e.g. identify the cause and characteristics of Turner's syndrome. 5. What are the hormonal factors that can produce sexual variations, e.g. identify the cause and characteristics of CAH (congential adrenal hyperplasia), AIS (androgen insensitivity syndrome), and lack of 5-alpha-reductase (DHT-deficiency syndrome) 6. Describe the CAH evidence showing the prenatal effect of 7. What are the possible genetic influences on sexual orientation? 8. What are the possible hormonal influences on sexual androgens on the human brain Describe the evidence supporting genetic influences. orientation? Describe the evidence supporting hormonal influences 9. Describe how fraternal birth order effect might influence sexual orientation

Explanation / Answer

1. Se-x determination system in humans is determined by the se-x chromosomes.

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