Question 1

A gene called the ______ must be activated at week seven of embryonic development for male sex organs and glands to develop.

Accepted Answer

A)  sex-determining gene on the Y chromosome
B)  GnRH
C)  FSH
D)  sex-determining gene on the X chromosome
E)  GHF) A) and D)
G) C) and D)

Question 2

Menopause

Accepted Answer

A)  is the cessation of menstruation.
B)  is the cessation of sperm production.
C)  is the beginning of menstruation.
D)  begins in most females at puberty.
E)  begins in most males at puberty.F) A) and E)
G) A) and B)

Question 3

Birth control pills contain a combination of estrogen and progesterone.What effect would this have on the anterior pituitary?

Accepted Answer

A)  It would secrete less FSH and LH.
B)  It would secrete less gonadotrophin-releasing hormone.
C)  It would secrete more gonadotrophin-releasing hormone.
D)  It would secrete more FSH and LH.
E)  There would be no effect on the anterior pituitary.F) None of the above
G) C) and D)

Question 4

The cells in the ovary that give rise to the mature egg cells are the

Accepted Answer

A)  follicle cells.
B)  primary spermatocytes.
C)  endometrial cells.
D)  polar bodies.
E)  oocytes.F) A) and B)
G) A) and C)

Question 5

The end of the uterus that opens to the vagina is the

Accepted Answer

A)  labia minorA.
B)  cervix.
C)  vaginal orifice.
D)  clitoris.
E)  labia majora.F) D) and E)
G) C) and D)

Question 6

Mature human sperm cells

Accepted Answer

A)  are haploid.
B)  are secondary spermatocytes.
C)  contain 46 chromosomes.
D)  are primary spermatocytes.
E)  undergo meiosis.F) C) and E)
G) A) and E)

Question 7

If a mother gives birth in a squatting position,and the baby breaks free on the way out of the birth canal,you would know that there had been a break in the

Accepted Answer

A)  chorionic villus.
B)  umbilical cord.
C)  uterine tube.
D)  fallopian tube.
E)  embryonic disc.F) A) and E)
G) A) and B)

Question 8

A caterpillar turning into a butterfly is an example of

Accepted Answer

A)  external fertilization.
B)  internal fertilization.
C)  indirect development.
D)  direct development.
E)  reproduction.F) C) and E)
G) A) and D)

Question 9

In the late 1950s,some women took ______ as a tranquilizer to relieve morning sickness and it caused deformed limbs in developing embryos.

Accepted Answer

A)  acetaminophen
B)  acutane
C)  erythromycin
D)  thalidomide
E)  penicillinF) B) and E)
G) All of the above

Question 10

Sperm production in the human male is governed by estrogen and progesterone.

Accepted Answer

A) True 
 B)False

Question 11

Why does the surface of the oocyte change when the first sperm cell touches the secondary oocyte?

Accepted Answer

A)  to prevent the first sperm from further entering the egg before more of the outer layer of follicle cells is penetrated by other sperm
B)  to prevent the first sperm from fertilizing the egg until the uterus is prepared for implantation
C)  to allow the first sperm to enter the egg and fertilization to occur
D)  to allow up to 200 sperm to enter the egg,though only one sperm will fertilize the egg
E)  to prevent more than one sperm from entering the eggF) D) and E)
G) B) and C)

Question 12

The hormone that is the basis of most pregnancy tests is

Accepted Answer

A)  follicle-stimulating hormone.
B)  luteinizing hormone.
C)  human chorionic gonadotropin.
D)  estrogen.
E)  progesteronE.F) A) and D)
G) All of the above

Question 13

You are reading a patient's chart and decide that ovulation has happened.What did the chart show surging to make you think this?

Accepted Answer

A)  FSH
B)  LH
C)  estrogen
D)  progesterone
E)  GnRHF) A) and E)
G) A) and C)

Question 14

Why does the expulsion of the placenta not occur until the final stage of labor?

Accepted Answer

A)  to remove waste from the fetus during labor
B)  to provide nourishment to the fetus during labor
C)  to provide oxygen to the fetus during labor
D)  to remove carbon dioxide from the fetus during labor
E)  All answers are correct.F) C) and D)
G) D) and E)

Question 15

Fertilization of a secondary oocyte normally occurs in the

Accepted Answer

A)  ovary.
B)  vagina.
C)  fallopian tube.
D)  uterus.
E)  cervix.F) A) and D)
G) B) and E)

Question 16

Cilia sweep the released mature oocytes from ovaries into the

Accepted Answer

A)  cervix.
B)  uterine tubes.
C)  labia majora.
D)  uterus.
E)  vagina.F) None of the above
G) A) and B)

Question 17

Athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because the synthetic steroids cause what?

Accepted Answer

A)  a decrease in FSH and LH production
B)  an increase in FSH and LH production
C)  a decrease in FSH and an increase in LH production
D)  an increase in FSH and a decrease in LH production
E)  No answer is correct.F) None of the above
G) D) and E)

Question 18

Gonadotropin releasing hormone starts the cascade of hormones that promote sperm production in the human male.

Accepted Answer

A) True 
 B)False

Question 19

The 2 cm-long structure in the human female that stimulates the female to experience orgasm is the

Accepted Answer

A)  clitoris.
B)  cervix.
C)  labia majora.
D)  uterus.
E)  labia minora.F) A) and C)
G) A) and B)

Question 20

When a female cuttlefish accepts a male's mating attempt,the two animals align head-to-head,and he inserts a sperm packet into a pouch near her mouth.This is an example of

Accepted Answer

A)  sexual internal fertilization.
B)  sexual external fertilization.
C)  asexual internal fertilization.
D)  asexual external fertilization.
E)  hermaphroditic fertilization.F) A) and D)
G) A) and C)

Exam 30: Animal Reproduction and Development

Cilia sweep the released mature oocytes from ovaries into the

Correct AnswerverifiedShow Answer

Menopause

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Mature human sperm cells

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The 2 cm-long structure in the human female that stimulates the female to experience orgasm is the

Correct AnswerverifiedShow Answer

Gonadotropin releasing hormone starts the cascade of hormones that promote sperm production in the human male.

Correct AnswerverifiedShow Answer

The cells in the ovary that give rise to the mature egg cells are the

Correct AnswerverifiedShow Answer

If a mother gives birth in a squatting position,and the baby breaks free on the way out of the birth canal,you would know that there had been a break in the

Correct AnswerverifiedShow Answer

Why does the surface of the oocyte change when the first sperm cell touches the secondary oocyte?

Correct AnswerverifiedShow Answer

Athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because the synthetic steroids cause what?

Correct AnswerverifiedShow Answer

The hormone that is the basis of most pregnancy tests is

Correct AnswerverifiedShow Answer

Birth control pills contain a combination of estrogen and progesterone.What effect would this have on the anterior pituitary?

Correct AnswerverifiedShow Answer

A caterpillar turning into a butterfly is an example of

Correct AnswerverifiedShow Answer

Fertilization of a secondary oocyte normally occurs in the

Correct AnswerverifiedShow Answer

In the late 1950s,some women took ______ as a tranquilizer to relieve morning sickness and it caused deformed limbs in developing embryos.

Correct AnswerverifiedShow Answer

A gene called the ______ must be activated at week seven of embryonic development for male sex organs and glands to develop.

Correct AnswerverifiedShow Answer

The end of the uterus that opens to the vagina is the

Correct AnswerverifiedShow Answer

Why does the expulsion of the placenta not occur until the final stage of labor?

Correct AnswerverifiedShow Answer

Sperm production in the human male is governed by estrogen and progesterone.

Correct AnswerverifiedShow Answer

You are reading a patient's chart and decide that ovulation has happened.What did the chart show surging to make you think this?

Correct AnswerverifiedShow Answer

When a female cuttlefish accepts a male's mating attempt,the two animals align head-to-head,and he inserts a sperm packet into a pouch near her mouth.This is an example of

Correct AnswerverifiedShow Answer

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