Transcript Minority/Majority Identity Development Theory

Biological Differences
Chromosomal Sex
Gonadal/Hormonal Sex
Genital Sex
KEY CONCEPTS
• Chromosomal Sex
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The Basics: 46 Chromosomes, Two Sex Chromosomes, X’s And Y’s
Andosperm, Gynosperm, And “Predicting Sex”
The Problematic X Chromosome
Sex-Linked Traits
• Gonadal Sex
• The Indifferent Gonad
• Gonadal Development
• Mullerian Ducts--Ovaries and Wolffian Ducts—Testes
• Hormonal Sex
• The Adam Principle and the Eve Principle
• Testosterone (and MIS) and Estrogen
• Sex-Limited Characteristics
Ovum
Sperm
Each contributes 23 chromosomes for a total of 46
Always an X
An X or a Y
X Chromosome
Y Chromosome
XX - Female
XY - Male
Ovum
Sperm
Y-Andosperm
X-Gynosperm
Each contributes 23 chromosomes for a total of 46
Always an X
An X or a Y
XX - Female
XY - Male
THE PROBLEMATIC X CHROMOSOME
Pathological Sex-Linked Traits
Hemophilia • Color Blindness • Muscular Dystrophy
KEY CONCEPTS
• Chromosomal Sex
•
•
•
•
The Basics: 46 Chromosomes, Two Sex Chromosomes, X’s And Y’s
Andosperm, Gynosperm, And “Predicting Sex”
The Problematic X Chromosome
Sex-Linked Traits
• Gonadal Sex
• The Indifferent Gonad
• Gonadal Development
• Mullerian Ducts--Ovaries and Wolffian Ducts—Testes
• Hormonal Sex
• The Adam Principle and the Eve Principle
• Testosterone (and MIS) and Estrogen
• Sex-Limited Characteristics
INDIFFERENT GONAD
Gonads
Wolffian Duct
Müllerian Duct
Testosterone
MIS
Nothing
Happens
Adam Principle
Eve Principle
MALE GONAD
FEMALE GONAD
AGE
6 weeks
7-12 weeks
SEXUAL
DEVELOPMENT
Kind Of Sex
MEN
WOMEN
Chromosomal
XY
XX
Gonadal
Undifferentiated
Undifferentiated
Gonadal
Testes
Ovaries
Hormonal
Estrogen,
Testosterone, and
Mullerian
Inhibiting
Substance
Estrogen
Genital
Mullerian ducts
degenerate (MIS).
The Wolffian ducts
differentiate into
epididymis, vas
deferens, and
ejaculatory duct.
Wolffian ducts
degenerate
(automatically).
The Mullerian
ducts differentiate
into fallopian
tubes, uterus, and
upper vagina
Genital
Penis and
descended testes
Outer vagina and
clitoris
Glans (head of)
penis
Clitoris
Urethral Fold
becomes
Shaft of the penis
Labia minoria
Urogenital Slit
becomes
Raphe (seam at
base of penis)
Vaginal orifice
Scrotum
Labia majora
12-17 weeks
TIMETABLE
BY GENDER
Glans and Genital
Tubercle become
12-20 weeks
Labioscrotal
Swelling becomes
Concepts/Terms You Should
Know Today
Sex
Gonadal Sex
Chromosomal Sex
Hormonal Sex
Genital Sex
Hermaphroditism
Transsexualism
Gender Identity
Identity Salience
Gender Roles
Stereotype
Androgyny
Masculine v. Feminine
Sexuality
Sexual Roles
Sexual Orientation
Gender
Statistical Significance
Substantive Significance
X/Y Chromosomes
Andosperm
Gynosperm
Fertilization Timing
Sex-Linked Traits
Sex-Limited Traits
Recessive X
Hemophilia
Color Blindness
Indifferent Gonad
Testosterone
Estrogen
Adam and Eve Principles
Mullerian Inhibiting Substance (MIS)
Wolffian Duct System
Mullerian Duct System
Genital Tubercle
Genital Groove
Labioscrotal Swelling