1. Biological Differences Chromosomal Sex Gonadal/Hormonal Sex Genital Sex

2. KEY CONCEPTS Chromosomal Sex Gonadal Sex Hormonal 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

3. Each contributes 23 chromosomes for a total of 46
Ovum
Sperm
Each contributes 23 chromosomes for a total of 46
Always an X
An X or a Y

4. X Chromosome
Y Chromosome

5. XX - Female
XY - Male

6. Each contributes 23 chromosomes for a total of 46
Ovum
Sperm
X-Gynosperm
Y-Andosperm
Each contributes 23 chromosomes for a total of 46
Always an X
An X or a Y

7. THE PROBLEMATIC X CHROMOSOME Pathological Sex-Linked Traits
XX - Female
XY - Male
THE PROBLEMATIC X CHROMOSOME
Pathological Sex-Linked Traits
Hemophilia • Color Blindness • Muscular Dystrophy

8. KEY CONCEPTS Chromosomal Sex Gonadal Sex Hormonal 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

9. INDIFFERENT GONAD MALE GONAD FEMALE GONAD Gonads Wolffian Duct
Müllerian Duct
Testosterone
MIS
Nothing
Happens
Adam Principle
Eve Principle
MALE GONAD
FEMALE GONAD

11. SEXUAL DEVELOPMENT TIMETABLE BY GENDER
AGE
Kind Of Sex
MEN
WOMEN
6 weeks
Chromosomal XY XX
Gonadal
Undifferentiated
7-12 weeks
Testes
Ovaries
12-17 weeks
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
12-20 weeks
Penis and descended testes
Outer vagina and clitoris
Glans and Genital Tubercle become
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
Labioscrotal Swelling becomes
Scrotum
Labia majora
SEXUAL
DEVELOPMENT
TIMETABLE
BY GENDER

12. 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