Question 1

When Simon LeVay examined interstitial nucleus 3 in 41 people who had died, he found that in the homosexual males in his sample, this nucleus was:

Accepted Answer

A)  larger, but only in those who had died of AIDS. 
B)  comparable in size to the heterosexual males who had died of AIDS. 
C)  comparable in size to the whole group of heterosexual males. 
D)  comparable in size to the heterosexual females. 
A)  larger, but only in those who had died of AIDS. 
B)  comparable in size to the heterosexual males who had died of AIDS. 
C)  comparable in size to the whole group of heterosexual males. 
D)  comparable in size to the heterosexual females.

Question 2

Müllerian ducts are found in:

Accepted Answer

A)  genetic female fetuses only. 
B)  genetic male fetuses only. 
C)  female and male fetuses early in development. 
D)  female and male fetuses until shortly before birth. 
A)  genetic female fetuses only. 
B)  genetic male fetuses only. 
C)  female and male fetuses early in development. 
D)  female and male fetuses until shortly before birth.

Question 3

What develops from the Müllerian ducts?

Accepted Answer

A)  the bladder and urethra 
B)  peripheral nerves controlling the genitals 
C)  female reproductive structures 
D)  male reproductive structures 
A)  the bladder and urethra 
B)  peripheral nerves controlling the genitals 
C)  female reproductive structures 
D)  male reproductive structures

Question 4

Which of the following time points would women most likely initiate sexual activity?

Accepted Answer

A)  periovulatory period 
B)  luteal phase 
C)  menstruation 
D)  when they stop taking contraceptives 
A)  periovulatory period 
B)  luteal phase 
C)  menstruation 
D)  when they stop taking contraceptives

Question 5

Male sexual behavior depends heavily on neurons in the medial preoptic area of the hypothalamus releasing which substance?

Accepted Answer

A)  testosterone 
B)  dopamine 
C)  estrogen 
D)  luteinizing hormone 
A)  testosterone 
B)  dopamine 
C)  estrogen 
D)  luteinizing hormone

Question 6

During an early sensitive period, a mammal is exposed to only low levels of both androgens (such as testosterone) and estrogens (such as estradiol). How will its external genital anatomy appear?

Accepted Answer

A)  about like that of a normal male 
B)  intermediate between male and female 
C)  about like that of a normal female 
D)  either, depending on the presence or absence of a Y chromosome 
A)  about like that of a normal male 
B)  intermediate between male and female 
C)  about like that of a normal female 
D)  either, depending on the presence or absence of a Y chromosome

Question 7

Briefly describe the role of the sex hormone oxytocin.

Accepted Answer

It is important for reproductive behavio

Question 8

Birth control pills prevent pregnancy by:

Accepted Answer

A)  increasing the release of estrogen. 
B)  increasing the release of FSH. 
C)  interfering with the feedback cycle between the ovaries and the pituitary. 
D)  inactivating both ovaries. 
A)  increasing the release of estrogen. 
B)  increasing the release of FSH. 
C)  interfering with the feedback cycle between the ovaries and the pituitary. 
D)  inactivating both ovaries.

Question 9

Wolffian ducts are found in:

Accepted Answer

A)  genetic female fetuses only. 
B)  genetic male fetuses only. 
C)  female and male fetuses early in development. 
D)  female and male fetuses until shortly before birth. 
A)  genetic female fetuses only. 
B)  genetic male fetuses only. 
C)  female and male fetuses early in development. 
D)  female and male fetuses until shortly before birth.

Question 10

At this point, the conclusions of studies on the evolutionary interpretations of mating behavior suggest that these behaviors are:

Accepted Answer

A)  primarily inherited. 
B)  primarily learned from cultural influence. 
C)  used to justify our behaviors. 
D)  lacking the scientific studies to allow us to draw a conclusion about them. 
A)  primarily inherited. 
B)  primarily learned from cultural influence. 
C)  used to justify our behaviors. 
D)  lacking the scientific studies to allow us to draw a conclusion about them.

Question 11

Describe activating effects of sex hormones and give specific examples.

Accepted Answer

Hormones are significant determiners of

Question 12

Nature's "default setting" is to make every mammal a female in its external anatomy.

Accepted Answer

A) True 
 B)False

Question 13

During the menstrual cycle, estradiol and progesterone levels increase and decrease under the influence of hormones released by which gland?

Accepted Answer

A)  pineal 
B)  adrenal 
C)  thyroid 
D)  pituitary 
A)  pineal 
B)  adrenal 
C)  thyroid 
D)  pituitary

Question 14

Alcohol, marijuana, and haloperidol tend to have a(n) ____ effect on prenatal sexual development.

Accepted Answer

A)  aromatic 
B)  defeminizing 
C)  masculinizing 
D)  demasculinizing 
A)  aromatic 
B)  defeminizing 
C)  masculinizing 
D)  demasculinizing

Question 15

What conclusion can be drawn from the unusual gender identity cases from the Dominican Republic?

Accepted Answer

A)  The environment has no affect on gender identity. 
B)  If given the necessary hormones at puberty, any girl can become a boy. 
C)  Early child-rearing experiences are not the sole determinant of gender identity. 
D)  Chromosomes are the determining factor in gender identity. 
A)  The environment has no affect on gender identity. 
B)  If given the necessary hormones at puberty, any girl can become a boy. 
C)  Early child-rearing experiences are not the sole determinant of gender identity. 
D)  Chromosomes are the determining factor in gender identity.

Question 16

Some differences in males and females depend directly on control by the ____ independently of hormones.

Accepted Answer

A)  X chromosome 
B)  Y chromosome 
C)  X and Y chromosomes 
D)  hormones 
A)  X chromosome 
B)  Y chromosome 
C)  X and Y chromosomes 
D)  hormones

Question 17

When do the organizing effects of sex hormones occur in humans?

Accepted Answer

A)  well before birth 
B)  shortly before and after birth 
C)  during childhood 
D)  during adolescence 
A)  well before birth 
B)  shortly before and after birth 
C)  during childhood 
D)  during adolescence

Question 18

An injection of testosterone in a castrated male rat:

Accepted Answer

A)  has no effect. 
B)  elicits typical female sexual behavior. 
C)  restores male sexual behavior. 
D)  diminishes male sexual behavior. 
A)  has no effect. 
B)  elicits typical female sexual behavior. 
C)  restores male sexual behavior. 
D)  diminishes male sexual behavior.

Question 19

The relationship between ____ and sexual interest may go in both directions.

Accepted Answer

A)  Estrogen 
B)  Oxytocin 
C)  Testosterone 
D)  Estradiol 
A)  Estrogen 
B)  Oxytocin 
C)  Testosterone 
D)  Estradiol

Question 20

Nature's "default setting" is to make every mammal's external anatomy:

Accepted Answer

A)  male. 
B)  female. 
C)  intermediate between male and female. 
D)  fully both male and female. 
A)  male. 
B)  female. 
C)  intermediate between male and female. 
D)  fully both male and female.

When Simon LeVay examined interstitial nucleus 3 in 41 people who had died, he found that in the homosexual males in his sample, this nucleus was:

Müllerian ducts are found in:

What develops from the Müllerian ducts?

Which of the following time points would women most likely initiate sexual activity?

Male sexual behavior depends heavily on neurons in the medial preoptic area of the hypothalamus releasing which substance?

During an early sensitive period, a mammal is exposed to only low levels of both androgens (such as testosterone) and estrogens (such as estradiol). How will its external genital anatomy appear?

Briefly describe the role of the sex hormone oxytocin.

Birth control pills prevent pregnancy by:

Wolffian ducts are found in:

At this point, the conclusions of studies on the evolutionary interpretations of mating behavior suggest that these behaviors are:

Describe activating effects of sex hormones and give specific examples.

Nature's "default setting" is to make every mammal a female in its external anatomy.

During the menstrual cycle, estradiol and progesterone levels increase and decrease under the influence of hormones released by which gland?

Alcohol, marijuana, and haloperidol tend to have a(n) ____ effect on prenatal sexual development.

What conclusion can be drawn from the unusual gender identity cases from the Dominican Republic?

Some differences in males and females depend directly on control by the ____ independently of hormones.

When do the organizing effects of sex hormones occur in humans?

An injection of testosterone in a castrated male rat:

The relationship between ____ and sexual interest may go in both directions.

Nature's "default setting" is to make every mammal's external anatomy:

The Major Issues

Nerve Cells and Nerve Impulses

Synapses

Anatomy of the Nervous System

Development and Plasticity of the Brain

Vision

The Other Sensory Systems

Movement

Wakefulness and Sleep

Internal Regulation

Emotional Behaviors

The Biology of Learning and Memory

Cognitive Functions

Mood Disorders and Schizophrenia

Filters

Exam 11: Reproductive Behaviors

When Simon LeVay examined interstitial nucleus 3 in 41 people who had died, he found that in the homosexual males in his sample, this nucleus was:

Müllerian ducts are found in:

What develops from the Müllerian ducts?

Which of the following time points would women most likely initiate sexual activity?

Male sexual behavior depends heavily on neurons in the medial preoptic area of the hypothalamus releasing which substance?

During an early sensitive period, a mammal is exposed to only low levels of both androgens (such as testosterone) and estrogens (such as estradiol). How will its external genital anatomy appear?

Briefly describe the role of the sex hormone oxytocin.

Birth control pills prevent pregnancy by:

Wolffian ducts are found in:

At this point, the conclusions of studies on the evolutionary interpretations of mating behavior suggest that these behaviors are:

Describe activating effects of sex hormones and give specific examples.

Nature's "default setting" is to make every mammal a female in its external anatomy.

During the menstrual cycle, estradiol and progesterone levels increase and decrease under the influence of hormones released by which gland?

Alcohol, marijuana, and haloperidol tend to have a(n) ____ effect on prenatal sexual development.

What conclusion can be drawn from the unusual gender identity cases from the Dominican Republic?

Some differences in males and females depend directly on control by the ____ independently of hormones.

When do the organizing effects of sex hormones occur in humans?

An injection of testosterone in a castrated male rat:

The relationship between ____ and sexual interest may go in both directions.

Nature's "default setting" is to make every mammal's external anatomy:

The Major Issues

Nerve Cells and Nerve Impulses

Synapses

Anatomy of the Nervous System

Development and Plasticity of the Brain

Vision

The Other Sensory Systems

Movement

Wakefulness and Sleep

Internal Regulation

Emotional Behaviors

The Biology of Learning and Memory

Cognitive Functions

Mood Disorders and Schizophrenia

Filters