| This online textbook chapter supports and extends the content of the Sex and Gender video. The chapter covers genetic imprinting, inter-sex conditions, the effect of hormones on sex determination, and ethics. Click on the Go button to begin reading, or skip to a sub-section of the chapter in the list below.

Chapter Contents: Introduction Sex and the Y Chromosome Paternal Inheritance Evolution of the Y Chromosome X Inactivation Genetic Imprinting Testis-Determining Factor Hormones Intersex Ethics of Intersex Treatment Homosexuality Sex and Disease
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