Question 1

Polyspermy in humans results in

Accepted Answer

A)   twins.
B)   triplets.
C)   individuals with haploid cells.
D)   tetraploid adults.
E)   a nonfunctional zygote.F) C) and E)
G) None of the above

Question 2

The structure that transports the ovum to the uterus is the

Accepted Answer

A)   uterosacral ligament.
B)   vagina.
C)   fallopian tube.
D)   infundibulum.
E)   myometrium.F) A) and B)
G) A) and C)

Question 3

The chorionic villi

Accepted Answer

A)   form the umbilical cord.
B)   form the umbilical vein.
C)   form the umbilical arteries.
D)   increase the surface area available for exchange between the placenta and the maternal blood.
E)   form the portion of the placenta called the decidua capsularis.F) A) and B)
G) A) and C)

Question 4

Why is the scrotum, the sac that contains the testes, located outside of the body?

Accepted Answer

Optimum conditions for sperm d...

Question 5

Match the cells/tissue with the hormone it secretes.
-estrogen, prior to ovulation

Accepted Answer

A)  Leydig cells
B)  granulosa cells
C)  corpus luteum
D)  placentaE) None of the above
F) A) and B)

Question 6

Match the bipotential structure with its sex-specific result.
-testis

Accepted Answer

A)  urethral folds and groove
B)  gonad cortex
C)  gonad medulla
D)  Wolffian duct
E)  Müllerian ductF) B) and C)
G) A) and E)

Question 7

A vasectomy prevents which of the following?

Accepted Answer

A)   ejaculation
B)   spermatogenesis
C)   erection
D)   formed sperm from entering ejaculate
E)   ejaculation and spermatogenesisF) A) and B)
G) C) and D)

Question 8

Which of the following is a function of human placental lactogen?

Accepted Answer

A)   It alters mother's glucose and fatty acid metabolism.
B)   It stimulates contraction of the smooth muscle in the uterus during birth.
C)   It is the primary signal for the release of breast milk.
D)   It maintains the corpus luteum after fertilization.
E)   It loosens the ligaments in the pelvic bone before birth.F) A) and B)
G) None of the above

Question 9

Which of the following hormones is NOT produced by the placenta?

Accepted Answer

A)   human chorionic gonadotropin (hCG) 
B)   human placental lactogen (hPL) 
C)   relaxin
D)   luteinizing hormone
E)   progesteroneF) None of the above
G) C) and D)

Question 10

Hemophilia, color blindness, and Duchenne muscular dystrophy occur more often in males than females.Why?

Accepted Answer

A)   These traits are carried only on the Y chromosome.
B)   The Y chromosome has been deactivated in males with these conditions.
C)   Testis-determining factor (TDF)  causes these conditions.
D)   These conditions develop due to the lack of estrogen and progesterone.
E)   These traits are carried only on the X chromosome, and since there is no matching gene on the Y chromosome to compensate, the traits are expressed more readily in males.F) A) and E)
G) None of the above

Question 11

Which of the following occurs during days 15-28 of the menstrual cycle?

Accepted Answer

A)   proliferative phase
B)   ovulation
C)   menstruation
D)   secretory phaseE) A) and B)
F) All of the above

Question 12

The fold of skin that covers the tip of the penis is the

Accepted Answer

A)   glans penis.
B)   prepuce.
C)   corpus cavernosum.
D)   corpus spongiosum.
E)   penile urethra.F) A) and E)
G) A) and D)

Question 13

A male body builder starts taking injections of testosterone (an anabolic steroid) on a daily basis.After three weeks, which of the following would you expect to observe?

Accepted Answer

A)   increased sex drive
B)   decreased levels of GnRH
C)   decreased levels of LH
D)   decreased levels of FSH
E)   All of the above observations.F) All of the above
G) A) and B)

Question 14

Mucus functions as a lubricant in the semen.Which of the following produces mucus?

Accepted Answer

A)   seminiferous tubules
B)   prostate gland
C)   seminal vesicle
D)   bulbourethral glands
E)   epididymisF) C) and D)
G) C) and E)

Question 15

Sister chromatids

Accepted Answer

A)   are found in cells called primary gametes.
B)   contain twice the normal amount of DNA.
C)   occur during ovum formation.
D)   are found in cells called primary gametes and contain twice the normal amount of DNA.
E)   are found in cells called primary gametes, contain twice the normal amount of DNA, and occur during ovum formation.F) A) and D)
G) A) and C)

Question 16

Sperm production occurs in the

Accepted Answer

A)   ductus deferens.
B)   seminiferous tubules.
C)   epididymis.
D)   seminal vesicles.
E)   rete testis.F) A) and B)
G) A) and E)

Question 17

Which of the following hormones inhibits FSH secretion in the male?

Accepted Answer

A)   testosterone
B)   lutenizing hormone
C)   inhibin
D)   dihydrotestosterone
E)   testis-determining factorF) C) and E)
G) B) and D)

Question 18

Which of the following occurs during days 6-14 of the menstrual cycle?

Accepted Answer

A)   ovulation
B)   menstruation
C)   proliferative phase
D)   secretory phaseE) None of the above
F) B) and D)

Question 19

Gametes are produced by

Accepted Answer

A)   internal genitalia.
B)   external genitalia.
C)   gonads.
D)   autosomes.
E)   sex chromosomes.F) A) and C)
G) None of the above

Question 20

Which of the following is NOT a part of the ovarian cycle?

Accepted Answer

A)   follicular phase
B)   ovulation
C)   luteal phase
D)   menses
E)   corpus luteum formationF) None of the above
G) A) and B)

Exam 26: Reproduction and Development

Which of the following hormones is NOT produced by the placenta?

Correct AnswerverifiedShow Answer

Which of the following hormones inhibits FSH secretion in the male?

Correct AnswerverifiedShow Answer

The chorionic villi

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Match the cells/tissue with the hormone it secretes. -estrogen, prior to ovulation

Correct AnswerverifiedShow Answer

The structure that transports the ovum to the uterus is the

Correct AnswerverifiedShow Answer

The fold of skin that covers the tip of the penis is the

Correct AnswerverifiedShow Answer

Hemophilia, color blindness, and Duchenne muscular dystrophy occur more often in males than females.Why?

Correct AnswerverifiedShow Answer

Sperm production occurs in the

Correct AnswerverifiedShow Answer

Match the bipotential structure with its sex-specific result. -testis

Correct AnswerverifiedShow Answer

Polyspermy in humans results in

Correct AnswerverifiedShow Answer

Mucus functions as a lubricant in the semen.Which of the following produces mucus?

Correct AnswerverifiedShow Answer

A vasectomy prevents which of the following?

Correct AnswerverifiedShow Answer

Which of the following occurs during days 6-14 of the menstrual cycle?

Correct AnswerverifiedShow Answer

A male body builder starts taking injections of testosterone (an anabolic steroid) on a daily basis.After three weeks, which of the following would you expect to observe?

Correct AnswerverifiedShow Answer

Why is the scrotum, the sac that contains the testes, located outside of the body?

Correct AnswerverifiedOptimum conditions for sperm d...View AnswerShow Answer

Which of the following is NOT a part of the ovarian cycle?

Correct AnswerverifiedShow Answer

Gametes are produced by

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Which of the following is a function of human placental lactogen?

Correct AnswerverifiedShow Answer

Which of the following occurs during days 15-28 of the menstrual cycle?

Correct AnswerverifiedShow Answer

Sister chromatids

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Optimum conditions for sperm d...
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