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Dimensions of Human Sexuality, 6/e
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Biological Sexual Development
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Learning Objectives

After completing this chapter, you should be able to:

Describe genes and chromosomes.

Contrast mitosis and meiosis.

Contrast zygote, embryo, and fetus.

Describe X and Y chromosomes and explain the genetic determination of the sex of a person.

Explain how any change in the current ratio of males to females could have major social effects.

Explain the outcome of various sex chromosome abnormalities.

Contrast organizing versus activating effects of hormones.

Explain how an undifferentiated embryo develops into a female or a male.

Explain the concept of homologous sex organs and cite several examples.

Explain some ways that a person's apparent sex might differ from his or her genetic sex.

Explain why the traditional approaches to treating infants born with ambiguous sex organs are being reconsidered.

Explain prenatal sexual development of the fetal brain.