Psychology 2035A/B Lecture Notes - Lecture 4: Aisle, Sorus, Pubic Hair

• School: Western University
• Department: Psychology
• Course: Psychology 2035A/B
• Professor: Doug Hazlewood

Document Summary

Becoming male or female: the role of biology and socialization. Mother"s egg: contains 23 chromosomes; you inherit an x sex chromosome. Father"s sperm: contains 23 chromosomes; you inherit an x or y chromosome. If x sperm fertilizes egg: genetic female (xx) Girls (age 10-12); boys (age 12-14) (a) development of secondary sex characteristics: Boys and girls: pubic hair, growth spurt. Boys: facial hair, deeper voice, larger penis (b) gonads (reproductive organs) mature: The first ejaculation in boys (production of mature sperm from testes) in girls (mature eggs are released from ovaries); Part 2: our two basic identities (1) sexual identity (whether you are biologically male or female), If present, it (a) stimulates development of testes; (b) inhibits development of ovaries. When androgens are present, penis develops (sometimes called the adam principle) When absent, clitoris develops (also called eve principle) Genetic females (normal xx chromosomes) with unusually active adrenal glands (produce androgens);