Question 1

What describes placental mammalian embryos?

Accepted Answer

A)  They are born immediately after fertilization.
B)  They develop inside a leathery shell.
C)  They complete development in a pouch.
D)  They hatch from an internal egg.
E)  They are totally dependent on the mother for complete development.F) A) and D)
G) B) and C)

Question 2

Which of the following statements is true of reptiles?

Accepted Answer

A)  Eggs undergo external fertilization.
B)  Sperm are released in the vicinity of the female.
C)  Eggs have an amnion and a chorion.
D)  Larvae become adults by metamorphosis.E) A) and C)
F) All of the above

Question 3

In your fertility clinic, you look at the lab results of a young man.He has a prostate gland the size of a golf ball, a fructose-rich semen, and 10 million sperm per ml.His sperm consist of little more than DNA, mitochondria, and a flagellum, with almost no cytoplasm.Also, he has follicle-stimulating hormone (FSH)  and luteinizing hormone (LH)  in his bloodstream.Which of these is the likely cause of his fertility problems?

Accepted Answer

A)  enlarged prostate gland
B)  fructose in the semen
C)  sperm count
D)  sperm morphologyE) None of the above
F) B) and C)

Question 4

What caused intense selective pressure for terrestrial vertebrates to evolve internal fertilization?

Accepted Answer

A)  The eggs are too small for the males to find and fertilize.
B)  The gametes could not be released next to each other, as they would soon dry up.
C)  There is no mechanism for eggs and sperm to find one another.
D)  Terrestrial organisms only produce small quantities of gametes.E) A) and B)
F) A) and C)

Question 5

Calico cats are female.The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other.However, extremely rarely, there can be a male calico.Describe the genetics necessary for a male calico cat.

Accepted Answer

A)  XX with a translocation of the SRY gene onto one of the X chromosomes.
B)  XY with a mutation in the SRY gene.
C)  XX with a translocation of the testosterone gene onto one of the X chromosomes.
D)  XY with a mutation in the estrogen gene.E) None of the above
F) All of the above

Question 6

Even if utilized properly, what is the least effective means of birth control?

Accepted Answer

A)  oral contraceptive
B)  condom
C)  foam
D)  IUDE) A) and D)
F) B) and D)

Question 7

What kind of oocyte is released from the ovary at ovulation?

Accepted Answer

A)  primary
B)  germinal
C)  secondary
D)  ovumE) None of the above
F) A) and B)

Question 8

What completes preparation of uterus for pregnancy?

Accepted Answer

A)  FSH
B)  LH
C)  Testosterone
D)  ProgesteroneE) None of the above
F) A) and B)

Question 9

What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids?

Accepted Answer

A)  He would produce twice as many sperm and would be protected against infertility from other causes.
B)  He would produce twice as many sperm, which would crowd them during later development and lead to morphological defects.
C)  He would be entirely normal, since this is what usually happens.
D)  After one round of sperm production he would no longer be able to produce sperm and would be infertile.E) B) and D)
F) All of the above

Question 10

At a party, one of your friends has just revealed that he and his wife are trying to conceive.What do you advise him to avoid at the party?

Accepted Answer

A)  The loud music
B)  The raw vegetable appetizers
C)  The hot tub
D)  The melted cheese fondueE) B) and C)
F) C) and D)

Question 11

In the waiting room of a doctor's office, the staff are creating an educational display about varieties of birth control.What general categories of birth control will they want to outline?
_____ drugs that block gonad development
__X__ devices to prevent implantation
_____ hormones to close cervix
__X__ hormones to prevent ovulation
_____ hypothalamic implants
_____ nasal spray for males
__X__ sperm barriers
__X__ sperm destruction
__X__ surgical sterilization
__X__ abstinence

Accepted Answer

The categories of contraceptiv...

Question 12

A patient is complaining of erectile dysfunction.Based on what you know about the physiology of erections, what likely cause will you look for in your workup?

Accepted Answer

A)  Excessive caffeine consumption
B)  Atherosclerosis
C)  Damage to the baculum
D)  Damage to the vas deferensE) None of the above
F) A) and B)

Question 13

What stimulates growth of ovarian follicles?

Accepted Answer

A)  Estradiol
B)  FSH
C)  LH
D)  ProgesteroneE) A) and B)
F) B) and D)

Question 14

What is an important benefit of using condoms?

Accepted Answer

A)  They prevent prostate cancer.
B)  They have a failure rate of only 1%.
C)  They can help prevent osteoporosis.
D)  They help protect against STDs.E) A) and B)
F) A) and C)

Question 15

What is the very first hormone your body produced?

Accepted Answer

A)  hCG
B)  FSH
C)  testosterone or estrogen
D)  GnRH When you were a brand-new embryo, you secreted hCG to prevent regression of your old corpus luteum, allowing the pregnancy to be maintained.E) A) and B)
F) None of the above

Question 16

Where does normal fertilization of an egg by a sperm in a human female occur?

Accepted Answer

A)  at the ovary upon ovulation
B)  in the uterus after the egg has implanted
C)  in the uterus before the egg has implanted
D)  near the cervix before the egg leaves the female
E)  in the Fallopian tubeF) A) and B)
G) None of the above

Question 17

Which of the following determines genetic sex (male or female)  in mammals?

Accepted Answer

A)  the Y chromosome contained in the egg
B)  the SRY gene on the Y chromosome
C)  the temperature of the developing fetus
D)  the genetic makeup of the parentsE) B) and C)
F) B) and D)

Question 18

In males, sterilization involves a vasectomy, which removes a portion of what structure?

Accepted Answer

A)  vas deferens
B)  epididymis
C)  seminiferous tubules
D)  Sertoli cellsE) All of the above
F) A) and C)

Question 19

Sea turtles are endangered, in part because of human encroachment on the beaches where they lay eggs.You are working with a team to help protect turtle nests and hatchlings from curious beachgoers.Someone suggests putting a fabric dome over each nest to keep people away.What is your response?

Accepted Answer

A)  "That will have several benefits, including protecting the nests from rough weather and hurricanes."
B)  "That would create a new problem if it blocked the females, since the females sit on the nests to keep them warm."
C)  "That might create a new problem.Sea turtles use temperature-dependent sex determination, and lowering the temperature of the nest will likely change the sex ratio of the hatchlings."
D)  "That would create a new problem if it blocked the males.The males have to be able to dig into the nest to fertilize the eggs."E) C) and D)
F) B) and C)

Question 20

According to the figure, what is the only hormone that doesn't peak during ovulation?

Accepted Answer

A)  progesterone
B)  FSH
C)  LH
D)  estrogenE) C) and D)
F) All of the above

Exam 52: The Reproductive System

Which of the following statements is true of reptiles?

Correct Answer
verified

At a party, one of your friends has just revealed that he and his wife are trying to conceive.What do you advise him to avoid at the party?

Correct Answer
verified

What stimulates growth of ovarian follicles?

Correct Answer
verified

What completes preparation of uterus for pregnancy?

Correct Answer
verified

What describes placental mammalian embryos?

Correct Answer
verified

What is an important benefit of using condoms?

Correct Answer
verified

Correct Answer
verified

Calico cats are female.The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other.However, extremely rarely, there can be a male calico.Describe the genetics necessary for a male calico cat.

Correct Answer
verified

What kind of oocyte is released from the ovary at ovulation?

Correct Answer
verified

What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids?

Correct Answer
verified

In males, sterilization involves a vasectomy, which removes a portion of what structure?

Correct Answer
verified

What is the very first hormone your body produced?

Correct Answer
verified

Where does normal fertilization of an egg by a sperm in a human female occur?

Correct Answer
verified

According to the figure, what is the only hormone that doesn't peak during ovulation?

Correct Answer
verified

What caused intense selective pressure for terrestrial vertebrates to evolve internal fertilization?

Correct Answer
verified

Correct Answer
verified
The categories of contraceptiv...
View Answer

Even if utilized properly, what is the least effective means of birth control?

Correct Answer
verified

Sea turtles are endangered, in part because of human encroachment on the beaches where they lay eggs.You are working with a team to help protect turtle nests and hatchlings from curious beachgoers.Someone suggests putting a fabric dome over each nest to keep people away.What is your response?

Correct Answer
verified

Which of the following determines genetic sex (male or female) in mammals?

Correct Answer
verified

A patient is complaining of erectile dysfunction.Based on what you know about the physiology of erections, what likely cause will you look for in your workup?

Correct Answer
verified

Exam 52: The Reproductive System

Which of the following statements is true of reptiles?

Correct AnswerverifiedShow Answer

At a party, one of your friends has just revealed that he and his wife are trying to conceive.What do you advise him to avoid at the party?

Correct AnswerverifiedShow Answer

What stimulates growth of ovarian follicles?

Correct AnswerverifiedShow Answer

What completes preparation of uterus for pregnancy?

Correct AnswerverifiedShow Answer

What describes placental mammalian embryos?

Correct AnswerverifiedShow Answer

What is an important benefit of using condoms?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Calico cats are female.The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other.However, extremely rarely, there can be a male calico.Describe the genetics necessary for a male calico cat.

Correct AnswerverifiedShow Answer

What kind of oocyte is released from the ovary at ovulation?

Correct AnswerverifiedShow Answer

What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids?

Correct AnswerverifiedShow Answer

In males, sterilization involves a vasectomy, which removes a portion of what structure?

Correct AnswerverifiedShow Answer

What is the very first hormone your body produced?

Correct AnswerverifiedShow Answer

Where does normal fertilization of an egg by a sperm in a human female occur?

Correct AnswerverifiedShow Answer

According to the figure, what is the only hormone that doesn't peak during ovulation?

Correct AnswerverifiedShow Answer

What caused intense selective pressure for terrestrial vertebrates to evolve internal fertilization?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedThe categories of contraceptiv...View AnswerShow Answer

Even if utilized properly, what is the least effective means of birth control?

Correct AnswerverifiedShow Answer

Sea turtles are endangered, in part because of human encroachment on the beaches where they lay eggs.You are working with a team to help protect turtle nests and hatchlings from curious beachgoers.Someone suggests putting a fabric dome over each nest to keep people away.What is your response?

Correct AnswerverifiedShow Answer

Which of the following determines genetic sex (male or female) in mammals?

Correct AnswerverifiedShow Answer

A patient is complaining of erectile dysfunction.Based on what you know about the physiology of erections, what likely cause will you look for in your workup?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The categories of contraceptiv...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified