Lec10 02_06_08 Sex Determination

Lec10 02_06_08 Sex Determination - Lecture 10. Sex...

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Lecture 10. Sex determination Lecture 10. Sex determination February 6, 2008 February 6, 2008 See Chapter 7 in Cheung, Fundamental Concepts in Biology Outline Genetic determination of sex Hormonal determination of sex Abnormalities in sex determination Gender identity and sexual orientation Sex determination in the biological world
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Male or Female Male or Female
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Primary Sexual Characteristics Primary Sexual Characteristics Characteristics Female Male Sex chromosomes XX XY Gametes Egg Sperm Gonads Ovaries Testes Sex hormones Estrogens Testosterone Internal genitalia Vagina, uterus, Fallopian tubes Corpora cavernous, urethra, prostate, seminar vesicles External genitalia Glans clitoris, labia, vulva Glans penis, scrotum
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Reproductive Organ Development Ovaries Oviduct Uterus 14 wk Y absence Ovary Uterus Female Testes Bladder 14 wk Y presence Kidney Cloaca Gonads 6 wk Probladder Testosterone Urethra Testis Penis Male Mullerian duct Wolffian duct
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Sexual Differentiation Mullerian ducts Female genitalia Wolffian ducts Male genitalia
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Lec10 02_06_08 Sex Determination - Lecture 10. Sex...

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