Chapter 13 Quiz 3

A  heterosexual.

B  gay.

C  bisexual.

D  asexual.

E  antisexual.

A  none of these

B  bisexuals

C  transsexuals

D  gay males

E  heterosexuals

A  100% of the monozygotic twin brothers and 0% of the dizygotic twin brothers

B  52% of the monozygotic twin brothers and 22% of the dizygotic twin brothers

C  92% of the monozygotic twin brothers and 52% of the dizygotic twin brothers

D  30% of the monozygotic twin brothers and 20% of the half brothers

E  52% of the twin brothers and 22% of the male siblings

A  cortex

B  hypothalamus

C  ventral striatum

D  amygdala

E  all of these

A  all of these

B  Replacement injections of testosterone increased the proceptivity of ovariectomized and adrenalectomized female rhesus monkeys.

C  Replacement injections of testosterone increased the sexual motivation of human females who had been both ovariectomized and adrenalectomized.

D  Various measures of sexual motivation were correlated with the testosterone levels of healthy human females.

E  none of these

A  sexual motivation.

B  body hair.

C  strength.

D  ability to achieve an erection.

E  all of these

A  acted like a male from an early age.

B  suspected he was a boy from the second grade on.

C  refused to wear a bra.

D  all of these

E  requested mastectomy and phalloplasty.

A  hormones dominate social learning when it comes to gender identity.

B  sexual development is genetic and hormonal.

C  social learning dominates hormones when it comes to gender identity.

D  genes dominate social learning when it comes to gender identity.

E  social learning dominates genes when it comes to gender identity.

A  high levels of adrenal androgens.

B  ambiguous reproductive organs in many genetic females.

C  a decrease in the release of cortisol from the adrenal cortices.

D  all of these

A  shallow vaginas.

B  little public hair.

C  all of these

D  breasts.

E  internalized testes.

A  The program of mammalian female brain development unfolds normally in the absence of estradiol or other hormones.

B  none of these

C  The sexual dimorphism of the mammalian brain depends entirely on the presence or absence of testosterone; genes play no direct role.

D  There is a single mechanism that accounts for all differences between the brains of male and female mammals.

E  all of these

A  does not readily penetrate the blood-brain barrier.

B  all of these

C  is present in the blood of neonatal rats.

D  deactivates circulating estradiol.

E  none of these

A  aromatization

B  cholesterol

C  alpha fetoprotein

D  dihydrotestosterone

E  dimorphic

A  The male frontal cortex has an extra layer.

B  Male and female brains are identical.

C  Some suggestions of differences have been reported, but none of the differences has proven to be replicable.

D  The female frontal cortex is substantially larger than the male counterpart.

E  Many structural differences have been documented.

A  undeveloped female reproductive ducts.

B  male external reproductive organs.

C  ovaries.

D  all of these

E  male internal reproductive ducts.

A  breasts

B  the female pattern of pubic hair growth

C  the male pattern of pubic hair growth

D  chest hair

E  increased muscularity

A  is stimulated by a high ratio of androgens to estrogens.

B  is stimulated by a high ratio of estrogens to androgens.

C  can be blocked by hormones but is not stimulated by them.

D  occurs automatically unless testosterone is present.

E  occurs automatically even if testosterone is present in large amounts.

A  all of these

B  growth hormone.

C  gonadotropic hormone.

D  adrenocorticotropic hormone.