Question 1

The moment of orgasm is characterized by

Accepted Answer

A)   the ovulation of the oocyte from the ovary.
B)   the release of sperm from the seminiferous tubules.
C)   rhythmic contraction of many parts of the reproductive system.
D)   increased synthesis and release of ovarian steroid hormones.
E)   increased synthesis and release of testicular steroid hormones.

Question 2

Ovulation is the follicular response to a burst of secretion of

Accepted Answer

A)   LH.
B)   progesterone.
C)   inhibin.
D)   prolactin.
E)   estradiol.

Question 3

Assume that successful reproduction in a rare salamander species, wherein all individuals are females, relies on those females having access to sperm from males of another species but that the resulting embryos show no signs of a genetic contribution from the sperm. In this case, the sperm appear to be used only for

Accepted Answer

A)   morphogenesis.
B)   epigenesis.
C)   egg activation.
D)   cell differentiation.
E)   the creation of a diploid cell.

Question 4

The archenteron of the developing sea urchin eventually develops into the

Accepted Answer

A)   reproductive organs.
B)   blastocoel.
C)   heart and lungs.
D)   digestive tract.
E)   brain and spinal cord.

Question 5

Select the choice that correctly associates the organ with its embryonic sources.

Accepted Answer

A)   anterior pituitary gland-mesoderm and endoderm
B)   thyroid gland-mesoderm and ectoderm
C)   adrenal gland-ectoderm and mesoderm
D)   skin-endoderm and mesoderm
E)   brain-mesoderm and endoderm

Question 6

Mature human sperm and ova are similar in that they

Accepted Answer

A)   both have the same number of chromosomes.
B)   are approximately the same size
C)   each have a flagellum that provides motility.
D)   are produced from puberty until death.
E)   are formed before birth.

Question 7

In excreted urine, a reliable "marker" that a pregnancy has initiated is

Accepted Answer

A)   progesterone.
B)   estrogen.
C)   follicle-stimulating hormone.
D)   chorionic gonadotropin.
E)   hypothalamic-releasing hormones.

Question 8

Increasing the temperature of the human scrotum by 2°C (i.e., near the normal body core temperature)  and holding it there would

Accepted Answer

A)   reduce the fertility of the man by impairing the production of gonadal steroid hormones.
B)   reduce the fertility of the man by impairing spermatogenesis.
C)   reduce the man's sexual interest.
D)   increase the fertility of the affected man by enhancing the rate of steroidogenesis.
E)   have no effect on male reproductive processes.

Question 9

Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

Accepted Answer

A)   the requirement for male-like behaviors in some females before their partners will ovulate.
B)   the development and then regression of testes prior to sexual maturation.
C)   the observation that all of the offspring are haploid.
D)   dependence on favorable weather conditions for ovulation to occur.
E)   the persistence of a vestigial penis among some of the females.

Question 10

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by

Accepted Answer

A)   abnormally high levels of carbonic acid in the cytosol.
B)   abnormally low levels of extracellular oxygen.
C)   injection of calcium ions into the cytosol.
D)   exposure to the low pH of the uterus.
E)   depletion of its ATP supplies.

Question 11

As an embryo develops, new cells are produced as the result of

Accepted Answer

A)   differentiation.
B)   preformation.
C)   cell division.
D)   morphogenesis.
E)   epigenesis.

Question 12

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions.
  Figure 36.1
-In Figure 36.1, which letter points to the oviduct?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 13

Labor contractions can be increased by the medical use of a synthetic drug that mimics the action of

Accepted Answer

A)   inhibin.
B)   luteinizing hormone.
C)   oxytocin.
D)   prolactin.
E)   vasopressin.

Question 14

For the 10 days following ovulation in a nonpregnant menstrual cycle, the main source of progesterone is the

Accepted Answer

A)   adrenal cortex.
B)   anterior pituitary.
C)   corpus luteum.
D)   developing follicle.
E)   placenta.

Question 15

Fertilization of an egg without activation is most like

Accepted Answer

A)   placing the key in the ignition of a car but not starting the engine.
B)   resting during halftime of a basketball game.
C)   preparing a pie from scratch and baking it in the oven.
D)   walking to the cafeteria and eating lunch.
E)   dropping a rock off a cliff and watching it land in the valley below.

Question 16

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions.
  Figure 36.2
-In Figure 36.2, which letter points to the prostate gland?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 17

Most of the noncellular fluid in ejaculated human semen is composed of

Accepted Answer

A)   the secretions of the seminiferous tubules.
B)   the secretions of the bulbourethral glands.
C)   the secretions of the seminal vesicles.
D)   the secretions of the prostate gland.
E)   anticoagulant enzymes.

Question 18

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions.
  Figure 36.2
-In Figure 36.2, which letter points to the scrotum?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   E

Question 19

If gastrulation was blocked by an environmental toxin, then

Accepted Answer

A)   cleavage would not occur in the zygote.
B)   embryonic germ layers would not form.
C)   fertilization would be blocked.
D)   the blastula would not be formed.
E)   the blastopore would form above the gray crescent in the animal pole.

Question 20

The secretion of follicle-stimulating hormone from the anterior pituitary gland is reduced by

Accepted Answer

A)   inhibin.
B)   luteinizing hormone.
C)   oxytocin.
D)   prolactin.
E)   vasopressin.

Exam 36: Reproduction and Development

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. Figure 36.1 -In Figure 36.1, which letter points to the oviduct?

Correct Answer
verified

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by

Correct Answer
verified

The moment of orgasm is characterized by

Correct Answer
verified

Ovulation is the follicular response to a burst of secretion of

Correct Answer
verified

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions. Figure 36.2 -In Figure 36.2, which letter points to the prostate gland?

Correct Answer
verified

Correct Answer
verified

As an embryo develops, new cells are produced as the result of

Correct Answer
verified

Most of the noncellular fluid in ejaculated human semen is composed of

Correct Answer
verified

If gastrulation was blocked by an environmental toxin, then

Correct Answer
verified

Mature human sperm and ova are similar in that they

Correct Answer
verified

Fertilization of an egg without activation is most like

Correct Answer
verified

In excreted urine, a reliable "marker" that a pregnancy has initiated is

Correct Answer
verified

Labor contractions can be increased by the medical use of a synthetic drug that mimics the action of

Correct Answer
verified

Select the choice that correctly associates the organ with its embryonic sources.

Correct Answer
verified

The secretion of follicle-stimulating hormone from the anterior pituitary gland is reduced by

Correct Answer
verified

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions. Figure 36.2 -In Figure 36.2, which letter points to the scrotum?

Correct Answer
verified

Increasing the temperature of the human scrotum by 2°C (i.e., near the normal body core temperature) and holding it there would

Correct Answer
verified

For the 10 days following ovulation in a nonpregnant menstrual cycle, the main source of progesterone is the

Correct Answer
verified

Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

Correct Answer
verified

The archenteron of the developing sea urchin eventually develops into the

Correct Answer
verified

Exam 36: Reproduction and Development

Refer to the following figure, which diagrams the reproductive anatomy of the human female, to answer the following questions. Figure 36.1 -In Figure 36.1, which letter points to the oviduct?

Correct AnswerverifiedShow Answer

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by

Correct AnswerverifiedShow Answer

The moment of orgasm is characterized by

Correct AnswerverifiedShow Answer

Ovulation is the follicular response to a burst of secretion of

Correct AnswerverifiedShow Answer

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions. Figure 36.2 -In Figure 36.2, which letter points to the prostate gland?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

As an embryo develops, new cells are produced as the result of

Correct AnswerverifiedShow Answer

Most of the noncellular fluid in ejaculated human semen is composed of

Correct AnswerverifiedShow Answer

If gastrulation was blocked by an environmental toxin, then

Correct AnswerverifiedShow Answer

Mature human sperm and ova are similar in that they

Correct AnswerverifiedShow Answer

Fertilization of an egg without activation is most like

Correct AnswerverifiedShow Answer

In excreted urine, a reliable "marker" that a pregnancy has initiated is

Correct AnswerverifiedShow Answer

Labor contractions can be increased by the medical use of a synthetic drug that mimics the action of

Correct AnswerverifiedShow Answer

Select the choice that correctly associates the organ with its embryonic sources.

Correct AnswerverifiedShow Answer

The secretion of follicle-stimulating hormone from the anterior pituitary gland is reduced by

Correct AnswerverifiedShow Answer

Refer to Figure 36.2, which diagrams the reproductive anatomy of the human male, to answer the following questions. Figure 36.2 -In Figure 36.2, which letter points to the scrotum?

Correct AnswerverifiedShow Answer

Increasing the temperature of the human scrotum by 2°C (i.e., near the normal body core temperature) and holding it there would

Correct AnswerverifiedShow Answer

For the 10 days following ovulation in a nonpregnant menstrual cycle, the main source of progesterone is the

Correct AnswerverifiedShow Answer

Evidence that parthenogenic whiptail lizards are derived from sexually reproducing ancestors includes

Correct AnswerverifiedShow Answer

The archenteron of the developing sea urchin eventually develops into the

Correct AnswerverifiedShow Answer

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