Question 1

The time span over which sexual intercourse is most likely to result in conception is from ________ day(s) before ovulation to ________ day(s) after ovulation.

Accepted Answer

A)  0;3
B)  1;1
C)  2;4
D)  1;5
E)  5;1F) A) and B)
G) B) and C)

Question 2

Sydney had an infection 10 years ago that left scarring in her fallopian tubes.Due to this scarring,the diameter of the fallopian tubes has been reduced by 75%.What effects may Sydney experience?

Accepted Answer

A)  Oocytes may not reach the uterus.
B)  Endometrium may not mature as needed for implantation.
C)  During pregnancy the fetus may not mature to full size.
D)  The cervix may not dilate during birth.
E)  None of these would occur.F) None of the above
G) C) and E)

Question 3

The major source of estradiol and progesterone in a non-pregnant woman is the

Accepted Answer

A)  thyroid gland.
B)  adrenal gland.
C)  testis.
D)  ovary.
E)  uterus.F) A) and E)
G) D) and E)

Question 4

Increasing circulating levels of inhibin would result in fewer gametes available for fertilization in both sexes.

Accepted Answer

A) True 
 B)False

Question 5

Inhibiting the hormone inhibin would stop sperm production and therefore be a possible mechanism for male birth control.

Accepted Answer

A) True 
 B)False

Question 6

Umbilical arteries

Accepted Answer

A)  deliver oxygen and nutrient-rich blood from the mother to the placenta.
B)  deliver oxygen and nutrient-rich blood from the fetus to the placenta.
C)  carry blood with low oxygen and high metabolic wastes away from the fetus to the placenta.
D)  carry highly oxygenated blood from the placenta to the fetus.
E)  carry blood with low oxygen and high metabolic wastes from the placenta to the mother's circulation.F) C) and D)
G) C) and E)

Question 7

A drug company creates a drug that acts as an antagonist to the human chorionic gonadotropin (hCG) receptor.The effect of this drug,if given in early pregnancy would be

Accepted Answer

A)  secretion of large quantities of FSH and LH.
B)  secretion of large quantities of GnRH.
C)  degeneration of the corpus luteum and declining levels of progesterone and estrogen.
D)  secretion of large quantities of progesterone and estrogen.
E)  secretion of cortisol.F) A) and B)
G) D) and E)

Question 8

A class of drugs that inhibit vasodilation would have what effect on male reproduction?

Accepted Answer

A)  Orgasm would occur more readily
B)  Erection may be inhibited
C)  Increased rate of sperm production may occur
D)  Increased volume of semen may be produced
E)  None of these effects would occurF) B) and D)
G) D) and E)

Question 9

Parturition

Accepted Answer

A)  is the delivery of the infant and placenta.
B)  normally occurs between the 27th and 28th weeks of pregnancy.
C)  is an example of negative feedback.
D)  occurs within 24 to 48 hours of ovulation.
E)  is a pathological condition in which a pregnant woman retains too much fluid (edema) ,and it can lead to seizures. F) All of the above
G) A) and B)

Question 10

The transition between the ________ and the ________ phases of the uterine cycle coincides with ________.

Accepted Answer

A)  follicular;luteal;a rise in basal body temperature
B)  proliferative;secretory;ovulation
C)  menstrual;proliferative;ovulation
D)  secretory;proliferative;selection of the dominant follicle
E)  proliferative;secretory;menstruationF) A) and B)
G) B) and E)

Question 11

Sarah is a pregnant woman entering her third trimester.She is experiencing a number of physiological changes compared to her non-pregnant state.She checks in with her doctor to make sure everything she's experiencing is normal.Which of these is NOT expected in healthy pregnancy?

Accepted Answer

A)  Increased appetite
B)  Increased blood volume
C)  Hypoventilation
D)  All of these are expected
E)  Cardiac output increasesF) A) and B)
G) C) and D)

Question 12

Steroid hormones generally bind with receptors inside target cells and control the rate of formation of mRNAs that lead to the synthesis of proteins.

Accepted Answer

A) True 
 B)False

Question 13

Which is a function of LH?

Accepted Answer

A)  It stimulates androgen production by theca cells.
B)  It stimulates the growth of granulosa cells.
C)  It stimulates production of inhibin by theca cells.
D)  It stimulates estrogen production by theca cells.
E)  It inhibits GnRH secretion by the hypothalamus during ovulation.F) A) and C)
G) B) and E)

Question 14

A drug company produces a drug that prevents atresia.Which of the following might be a side-effect of this drug?

Accepted Answer

A)  Increased rate of successful fertilization and increased incidence of multiple births (twins,etc. ) 
B)  Lower circulating progesterone levels in the follicular phase
C)  Lower circulating progesterone levels in the luteal phase
D)  Higher circulating estrogen levels in the luteal phase
E)  Increased production of spermF) A) and B)
G) B) and E)

Question 15

At birth,the ovaries of a female baby contain less than one million oogonia.

Accepted Answer

A) True 
 B)False

Question 16

In the ovarian cycle,the dominant follicle

Accepted Answer

A)  undergoes atresia.
B)  continues to grow beyond day 7 of the cycle,while the other developing follicles degenerate.
C)  is selected on day 1 of the cycle,and no other follicles develop beyond that day.
D)  is selected to continue growing at about the middle of the luteal phase.
E)  ruptures during ovulation on day 21 of the cycle.F) A) and C)
G) B) and E)

Question 17

Which of the following is NOT a function of estrogen during pregnancy?

Accepted Answer

A)  Stimulation of myometrial growth
B)  Maintenance of the endometrium
C)  Stimulation of prolactin secretion
D)  Stimulation of breast development
E)  Controlling milk ejectionF) A) and B)
G) A) and C)

Question 18

Which of these results from the second meiotic division?

Accepted Answer

A)  Two diploid daughter cells with 46 chromosomes each
B)  Two haploid daughter cells with 23 chromosomes each
C)  Two diploid daughter cells with 23 chromosomes each
D)  A single daughter cell with 46 chromosomes,and a polar body with no genetic material
E)  Two haploid daughter cells with 46 haploid chromosomesF) C) and D)
G) B) and E)

Question 19

The acrosome reaction is triggered by

Accepted Answer

A)  deposition of sperm into the female reproductive tract.
B)  capacitation of sperm.
C)  estrogen.
D)  binding of the heads of sperm to the zona pellucida.
E)  the first meiotic reduction division of the ovum.F) A) and B)
G) C) and D)

Question 20

During meiosis,crossing-over results in the exchange of homologous genes from one of a pair of chromatids to the other with no net change in possibilities for genetic expression.

Accepted Answer

A) True 
 B)False

Exam 17: Reproduction

A drug company creates a drug that acts as an antagonist to the human chorionic gonadotropin (hCG) receptor.The effect of this drug,if given in early pregnancy would be

Correct AnswerverifiedShow Answer

Increasing circulating levels of inhibin would result in fewer gametes available for fertilization in both sexes.

Correct AnswerverifiedShow Answer

During meiosis,crossing-over results in the exchange of homologous genes from one of a pair of chromatids to the other with no net change in possibilities for genetic expression.

Correct AnswerverifiedShow Answer

Sarah is a pregnant woman entering her third trimester.She is experiencing a number of physiological changes compared to her non-pregnant state.She checks in with her doctor to make sure everything she's experiencing is normal.Which of these is NOT expected in healthy pregnancy?

Correct AnswerverifiedShow Answer

A drug company produces a drug that prevents atresia.Which of the following might be a side-effect of this drug?

Correct AnswerverifiedShow Answer

At birth,the ovaries of a female baby contain less than one million oogonia.

Correct AnswerverifiedShow Answer

Which of these results from the second meiotic division?

Correct AnswerverifiedShow Answer

The acrosome reaction is triggered by

Correct AnswerverifiedShow Answer

Parturition

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The transition between the ________ and the ________ phases of the uterine cycle coincides with ________.

Correct AnswerverifiedShow Answer

The major source of estradiol and progesterone in a non-pregnant woman is the

Correct AnswerverifiedShow Answer

In the ovarian cycle,the dominant follicle

Correct AnswerverifiedShow Answer

The time span over which sexual intercourse is most likely to result in conception is from ________ day(s) before ovulation to ________ day(s) after ovulation.

Correct AnswerverifiedShow Answer

Sydney had an infection 10 years ago that left scarring in her fallopian tubes.Due to this scarring,the diameter of the fallopian tubes has been reduced by 75%.What effects may Sydney experience?

Correct AnswerverifiedShow Answer

Steroid hormones generally bind with receptors inside target cells and control the rate of formation of mRNAs that lead to the synthesis of proteins.

Correct AnswerverifiedShow Answer

A class of drugs that inhibit vasodilation would have what effect on male reproduction?

Correct AnswerverifiedShow Answer

Which is a function of LH?

Correct AnswerverifiedShow Answer

Inhibiting the hormone inhibin would stop sperm production and therefore be a possible mechanism for male birth control.

Correct AnswerverifiedShow Answer

Umbilical arteries

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of estrogen during pregnancy?

Correct AnswerverifiedShow Answer

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The transition between the and the phases of the uterine cycle coincides with .

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The time span over which sexual intercourse is most likely to result in conception is from day(s) before ovulation to day(s) after ovulation.

Correct Answer
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