PSYB64H3 Final: Physiological Psychology Final Exam Notes.docx
Document Summary
Beforearistotle: sex of child = temperature of semen at the same time of conception; hot males, cool females. Today: begins w. sex chromosomes from two parents (the human genome: 23 chromosomes, first 22 are the same, chromosome 23 differentiates males and females) Dad determine offspring sex by providing either another x (produce female) or a. *fetus is undifferentiated in sex (w/o male hormone, babies would be born w. outward female physical appearance and female behavior) Xyy: substle physical and behavioral correlates, controversial association w antisocial behavior (ppl with xyy assoc w antisocial behavior), 1/1000 male births. External genitalia: (penis=males, clitoris= females: development of gonads: 6 weeks: primordial gonads developed, but undifferentiated in male/fm. 8 weeks: sex-determining reg of the y chrom (sry) expressed in males, which releases testis-determinding factor (a protein) to develop testes lack of sry so alternate genes make ovaries.
