Question 1

In males, the urethra

Accepted Answer

A)  provides passage from the body for sperm. 
B)  produces sugars that sperm use for energy. 
C)  contains the testes. 
D)  fills with blood during sexual arousal. 
A)  provides passage from the body for sperm. 
B)  produces sugars that sperm use for energy. 
C)  contains the testes. 
D)  fills with blood during sexual arousal.

Question 2

What structures inside the human penis are responsible for an erection?

Accepted Answer

A)  columns of erectile tissue that fill with blood 
B)  a series of small bones that push out of the pelvic cavity and into the penis during arousal 
C)  small balloon-like glands that fill with air 
D)  one large bone that pushes out of the pelvic cavity and into the penis during arousal 
A)  columns of erectile tissue that fill with blood 
B)  a series of small bones that push out of the pelvic cavity and into the penis during arousal 
C)  small balloon-like glands that fill with air 
D)  one large bone that pushes out of the pelvic cavity and into the penis during arousal

Question 3

Fertilization takes place in the

Accepted Answer

A)  uterus. 
B)  ovary. 
C)  oviduct. 
D)  cervix. 
A)  uterus. 
B)  ovary. 
C)  oviduct. 
D)  cervix.

Question 4

Infertility is defined as

Accepted Answer

A)  the inability to conceive after one month of unprotected sex. 
B)  the inability to conceive after one year of unprotected sex. 
C)  the inability to conceive after five years of unprotected sex. 
D)  the inability to conceive after one attempt of unprotected sex. 
A)  the inability to conceive after one month of unprotected sex. 
B)  the inability to conceive after one year of unprotected sex. 
C)  the inability to conceive after five years of unprotected sex. 
D)  the inability to conceive after one attempt of unprotected sex.

Question 5

A stand of aspen trees on a mountainside in Colorado is composed of genetic clones of a parent tree. Each new tree emerges from a root stock of the parent tree. This type of reproduction is referred to as

Accepted Answer

A)  vegetative reproduction. 
B)  budding. 
C)  fission. 
D)  sexual reproduction. 
A)  vegetative reproduction. 
B)  budding. 
C)  fission. 
D)  sexual reproduction.

Question 6

Exposure to which of the following chemicals is correlated with low-birth weight and premature birth?

Accepted Answer

A)  the plasticizer DEHP 
B)  bisphenol A (BP
A)  
C)  synthetic estrogen (DES) 
D)  polychlorinated biphenols (PCBs) 
A)  the plasticizer DEHP 
B)  bisphenol A (BP
A)  
C)  synthetic estrogen (DES) 
D)  polychlorinated biphenols (PCBs)

Question 7

The hormone that is detected in a pregnancy test is

Accepted Answer

A)  human chorionic gonadotropin hormone made by the early embryo. 
B)  progesterone made by the corpus luteum. 
C)  luteinizing hormone made by the pituitary. 
D)  estrogen made by the ovary. 
A)  human chorionic gonadotropin hormone made by the early embryo. 
B)  progesterone made by the corpus luteum. 
C)  luteinizing hormone made by the pituitary. 
D)  estrogen made by the ovary.

Question 8

What is the final product after a primary oocyte goes through meiosis?

Accepted Answer

A)  four secondary oocytes 
B)  three secondary oocytes and one polar body 
C)  two secondary oocytes and polar bodies 
D)  one secondary oocyte and polar bodies 
A)  four secondary oocytes 
B)  three secondary oocytes and one polar body 
C)  two secondary oocytes and polar bodies 
D)  one secondary oocyte and polar bodies

Question 9

Eggs first develop in a woman

Accepted Answer

A)  prior to birth. 
B)  at puberty. 
C)  throughout her lifetime. 
D)  every 60 days. 
A)  prior to birth. 
B)  at puberty. 
C)  throughout her lifetime. 
D)  every 60 days.

Question 10

The evidence that endocrine disruptors in the water supply can cause human reproductive problems is

Accepted Answer

A)  correlative. 
B)  definitive. 
C)  statistically significant. 
D)  entirely absent. 
A)  correlative. 
B)  definitive. 
C)  statistically significant. 
D)  entirely absent.

Question 11

Jane is a 20-year-old individual who externally resembles a female but who is actually genetically a male (XY). Based on your knowledge of human development, how could this be possible?

Accepted Answer

A)  Although Jane is genetically a male, she has produced an abnormal amount of estrogen since birth. 
B)  During development, Jane's body produced an excessive amount of testosterone, leading to the development of female external genitalia. 
C)  Jane's embryonic gonads did not produce androgens, or they lacked functional testosterone receptors. 
D)  Due to a genetic defect, Jane lacks sufficient aromatase activity, the enzyme that converts testosterone into estrogen. 
A)  Although Jane is genetically a male, she has produced an abnormal amount of estrogen since birth. 
B)  During development, Jane's body produced an excessive amount of testosterone, leading to the development of female external genitalia. 
C)  Jane's embryonic gonads did not produce androgens, or they lacked functional testosterone receptors. 
D)  Due to a genetic defect, Jane lacks sufficient aromatase activity, the enzyme that converts testosterone into estrogen.

Question 12

The most successful gamete production strategies observed in nature consist of

Accepted Answer

A)  100% small gametes and 0% large gametes. 
B)  100% large gametes and 0% small gametes. 
C)  50% small gametes and 50% large gametes. 
D)  75% large gametes and 25% small gametes. 
A)  100% small gametes and 0% large gametes. 
B)  100% large gametes and 0% small gametes. 
C)  50% small gametes and 50% large gametes. 
D)  75% large gametes and 25% small gametes.

Question 13

Atrazine is a widely-used pesticide hypothesized to be an endocrine disruptor that results in

Accepted Answer

A)  increased metabolism in animals. 
B)  the conversion of testosterone into estrogen. 
C)  the masculinization of female ovaries. 
D)  the loss of all sexual organs in frogs. 
A)  increased metabolism in animals. 
B)  the conversion of testosterone into estrogen. 
C)  the masculinization of female ovaries. 
D)  the loss of all sexual organs in frogs.

Question 14

The corpus luteum produces and releases ________ following ovulation.

Accepted Answer

A)  FSH and LH 
B)  estrogen 
C)  progesterone 
D)  both estrogen and progesterone 
A)  FSH and LH 
B)  estrogen 
C)  progesterone 
D)  both estrogen and progesterone

Question 15

The form of reproduction used by E. coli, a type of bacteria found in your digestive tract, is

Accepted Answer

A)  budding. 
B)  vegetative reproduction. 
C)  binary fission. 
D)  meiosis. 
A)  budding. 
B)  vegetative reproduction. 
C)  binary fission. 
D)  meiosis.

Question 16

When does spermatogenesis first occur in males?

Accepted Answer

A)  in the womb 
B)  at birth 
C)  during childhood 
D)  at puberty 
A)  in the womb 
B)  at birth 
C)  during childhood 
D)  at puberty

Question 17

Laboratory studies have shown that endocrine disruptors

Accepted Answer

A)  decrease the ability of human sperm to fertilize eggs. 
B)  cause human birth defects. 
C)  cause reproductive problems in nonhuman animals. 
D)  cause endometriosis in women. 
A)  decrease the ability of human sperm to fertilize eggs. 
B)  cause human birth defects. 
C)  cause reproductive problems in nonhuman animals. 
D)  cause endometriosis in women.

Question 18

A surge in which of the following hormones is responsible for ovulation?

Accepted Answer

A)  estrogen 
B)  FSH 
C)  LH 
D)  progesterone 
A)  estrogen 
B)  FSH 
C)  LH 
D)  progesterone

Question 19

An animal that can both donate and receive sperm

Accepted Answer

A)  reproduces asexually. 
B)  has only male gonads. 
C)  is called a hermaphrodite. 
D)  undergoes copulation. 
A)  reproduces asexually. 
B)  has only male gonads. 
C)  is called a hermaphrodite. 
D)  undergoes copulation.

Question 20

Which of the following conception control methods is most effective?

Accepted Answer

A)  diaphragm 
B)  condom 
C)  minipill 
D)  vaginal ring 
A)  diaphragm 
B)  condom 
C)  minipill 
D)  vaginal ring

Exam 21: Is There Something in the Water? Reproductive and Developmental Biology

In males, the urethra

What structures inside the human penis are responsible for an erection?

Fertilization takes place in the

Infertility is defined as

A stand of aspen trees on a mountainside in Colorado is composed of genetic clones of a parent tree. Each new tree emerges from a root stock of the parent tree. This type of reproduction is referred to as

Exposure to which of the following chemicals is correlated with low-birth weight and premature birth?

The hormone that is detected in a pregnancy test is

What is the final product after a primary oocyte goes through meiosis?

Eggs first develop in a woman

The evidence that endocrine disruptors in the water supply can cause human reproductive problems is

Jane is a 20-year-old individual who externally resembles a female but who is actually genetically a male (XY). Based on your knowledge of human development, how could this be possible?

The most successful gamete production strategies observed in nature consist of

Atrazine is a widely-used pesticide hypothesized to be an endocrine disruptor that results in

The corpus luteum produces and releases ________ following ovulation.

The form of reproduction used by E. coli, a type of bacteria found in your digestive tract, is

When does spermatogenesis first occur in males?

Laboratory studies have shown that endocrine disruptors

A surge in which of the following hormones is responsible for ovulation?

An animal that can both donate and receive sperm

Which of the following conception control methods is most effective?

Can Science Cure the Common Cold? Introduction to the Scientific Method

Are We Alone in the Universe? Water, Biochemistry, and Cells

Is It Possible to Supplement Your Way to Better Health?

Fat: How Much is Right for You? Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Global Warming

Cancer: DNA Synthesis, Mitosis, and Meiosis

Are You Only as Smart as Your Genes? Mendelian and Quantitative Genetics

DNA Detective: Complex Patterns of Inheritance and DNA Fingerprinting

Genetically Modified Organisms: Gene Expression, Mutation, and Cloning

Where Did We Come From? The Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I? Species and Races

Prospecting for Biological Gold: Biodiversity and Classification

Is the Human Population Too Large? Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live? Climate and Biomes

Organ Donation: Tissues Organs and Organ Systems

Clearing the Air: Respiratory Cardiovascular and Excretory Systems

Vaccinations: Protection and Prevention or Peril? Immune System

Sex Differences and Athleticism: Endocrine Skeletal and Muscular Systems

Attention Deficit Disorder: Brain Structure and Function

Feeding the World: Plant Structure and Growth

Growing a Green Thumb: Plant Physiology

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