Review Questions- Sex Identity/ Sex Differentiation/
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List the 4 different levels of sexual identity.
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In males, the developmental pathway leading to the development of gonadal
and
phenotypic sex involves three things. List them.
3. In females, the developmental pathway leading to the development of
gonadal
and phenotypic sex involves three things. List them.
4. What is sexual dimorphism?
5. Secondary sex characteristics involve differences in … .
6. In humans, sex determination is primarily associated with the … .
7. In humans, which sex is the homogametic sex? Which is the heterogametic
sex?
8. If a Y-bearing sperm fertilizes an egg, the offspring is _______________.
9. If an X-bearing sperm fertilizes the egg, the offspring is _______________.
10. What is a sex ratio?
11. Distinguish among the following: primary sex ratio; secondary sex ratio;
tertiary
sex ratio.
12. How are the X and Y chromosomes different?
13. What is the SRY gene? When was it discovered? Where is it located?
14. What does the SRY gene code for?
15. When is sex chromosomally determined?
16. Describe how phenotypic sex is determined.
17. Distinguish between the wolffian system and the Mullerian system.
18. What are sustentacular (Sertoli) cells? What do they secrete?
19. What is MIH? What does it do?
20. What are interstitial cells (cells of Leydig)? What do they secrete?
21. What does testosterone do?
22. What does DHT do?
23. Distinguish between true hermaphrodites and pseudohermaphrodites.
24. Describe the type of pseudohermaphroditism that is prevalent in the
Dominican
Republic. What do the genitalia look like? What happens at puberty
in these individuals?