How does heredity impact homosexuality?

What will be an ideal response?


Heredity makes an important contribution to homosexuality: Identical twins of both sexes are much more likely than fraternal twins to share a homosexual orientation; so are biological (as opposed to adoptive) relatives. Furthermore, male homosexuality tends to be more common on the maternal than on the paternal side of families, suggesting that it may be X-linked. According to some researchers, certain genes affect the level or impact of prenatal sex hormones, which modify brain structures in ways that induce homosexual feelings and behavior. However, environmental factors can also alter prenatal hormones. Girls exposed prenatally to very high levels of androgens or estrogens—either because of a genetic defect or from drugs given to the mother to prevent miscarriage—are more likely to become lesbian or bisexual. Furthermore, gay men tend to be later in birth order and to have a higher-than-average number of older brothers. One possibility is that mothers with several male children sometimes produce antibodies to androgens, reducing the prenatal impact of male sex hormones on the brains of later-born boys.

Psychology

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A current method for studying telepathy where one person acts as a "sender" and the other as a "receiver" is called

a. the file-drawer procedure c. psi communication b. the ganzfeld procedure d. Zener cards technique

Psychology

Older adolescents (18-year-olds) feel they have become _______ rather than _______ religious as they have matured from early adolescence (15-year-olds)

Fill in the blank with correct word

Psychology

While volunteering for the campus crisis hotline, you receivea call from an individual

who tells you that she is determined to engage in a self-mutilating binge that could result in suicide. Whenever you try to ask her questions, she repeats over and over that she doesn't want you to hang up, that she doesn't want to "lose her connection with you." What disorder does this caller most likely suffer? a. Borderline Personality Disorder b. Antisocial Personality Disorder c. Narcissistic Personality Disorder d. Catatonic Schizophrenia e. Obsessive-Compulsive Disorder

Psychology