Me 3.3c Gender and Sexual Orientation Flashcards
sexual orientation
about who you’re attracted to and want to have relationships with.
heterosexual orientation
female-male
same-sex orientation
attracted to one’s own sex
asexual orientation
attracted to no one at all.
bisexual orientation
attracted to both males and females
erotic plasticity
the degree to which one’s sex drive can be changed by cultural or social factors. (women have more of this)
fertile females theory
genes that dispose some women to conceive more children with men also dispose some men to be attracted to men
kin selection
when an animal engages in self-sacrificial behaviour that benefits the genetic fitness of its relatives. (a possible reason for gay genes)
fraternal birth-order effect
The effect becomes stronger with each additional male pregnancy, with odds of the next son being homosexual increasing by 38–48%