Psychology 2035A/B Lecture Notes - Lecture 4: X Chromosome, Y Chromosome, Pubic Hair

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

Document Summary

Lecture 4 - becoming male and female: the role of biology and socialization. Father(cid:859)s sper(cid:373) (cid:894)x or a y se(cid:454) (cid:272)hro(cid:373)oso(cid:373)e(cid:895) If x sperm fertilizes egg: genetic female xx. If y sperm fertilizes egg: genetic male xy. The gonadal factor (development of reproductive organs: testes or ovaries) True hermaphrodites/ true intersex: genetic females (xx) with tiny piece of y chromosome attached to one of the x chromosome (xxy) The y chromosome is big enough to stimulate the development of testes but not big enough to inhibit the development of the ovaries. You end up with an individual with testes and ovaries. The hormonal factor (influences the development of the sex organs: penis or clitoris) If the individual has testes then large amount of androgens are produced. If androgens are present then a penis develops (the adam principle) If androgens are absent clitoris develops (the eve principle)