Question 1

Why does the surface of the oocyte change when the first sperm cell touches the 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) A) and B)

Question 2

In humans,the transparent sac that contains fluid that cushions the embryo and maintains a constant temperature and pressure is the

Accepted Answer

A)   amnion.
B)   yolk sac.
C)   embryonic disc.
D)   chorionic villus.
E)   chorion.F) B) and E)
G) A) and E)

Question 3

The hormone released by the anterior pituitary that triggers ovulation and transforms the ruptured follicle into the corpus luteum is

Accepted Answer

A)   GnRH.
B)   FSH.
C)   LH.
D)   ATP.
E)   progesterone.F) A) and E)
G) C) and D)

Question 4

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) C) and D)
G) A) and E)

Question 5

The process that unites the male gamete with the female gamete in organisms that reproduce sexually is termed

Accepted Answer

A)   conjugation.
B)   fertilization.
C)   crossing over.
D)   gastrulation.
E)   recombination.F) B) and D)
G) B) and C)

Question 6

The diploid first cell of a new organism is a(n)

Accepted Answer

A)   gamete.
B)   sperm.
C)   polar body.
D)   zygote.
E)   ovum.F) B) and C)
G) B) and D)

Question 7

Taking antibiotics can disrupt the microbial community of the vagina and create an opportunity for the yeast Candida albicans to cause an infection.

Accepted Answer

A) True 
 B)False

Question 8

Which statement about sexually transmitted infections is wrong?

Accepted Answer

A)   STIs are unique to humans.
B)   The most common STI in the United States is genital warts.
C)   An individual with one STI can obtain another STI.
D)   STIs spread through vaginal, oral, and anal sex.
E)   Many STIs do not show initial symptoms, especially in men.F) B) and D)
G) B) and C)

Question 9

Which of the following STIs is caused by a protist?

Accepted Answer

A)   trichomoniasis
B)   HIV/AIDS
C)   genital herpes
D)   cervical cancer
E)   a yeast infectionF) A) and C)
G) B) and C)

Question 10

Although not viable in humans,what is the result if two sperm fertilized an egg?

Accepted Answer

A)   a haploid zygote with one-third of the total chromosomes from each gamete
B)   a diploid zygote with one-half of the total chromosomes from each gamete
C)   a diploid zygote with all of the chromosomes from each gamete
D)   a triploid zygote with all of the chromosomes from each gamete
E)   identical twinsF) A) and E)
G) B) and D)

Question 11

The tightly coiled structure/s inside the testes that produce the sperm cells is/are the

Accepted Answer

A)   seminiferous tubules.
B)   epididymis.
C)   vas deferens.
D)   scrotum.
E)   ureters.F) B) and D)
G) A) and E)

Question 12

The tube-like structure that serves as the birth canal in the human female is the

Accepted Answer

A)   cervix.
B)   vulva.
C)   vagina.
D)   uterus.
E)   uterine tube.F) A) and C)
G) A) and E)

Question 13

In a secondary oocyte,meiosis is arrested in metaphase II until

Accepted Answer

A)   ovulation.
B)   FSH is present.
C)   fertilization occurs.
D)   LH is secreted by the anterior pituitary.
E)   puberty.F) A) and D)
G) C) and E)

Question 14

In human males,the different types of male sex hormones are collectively called

Accepted Answer

A)   estrogens.
B)   growth hormones.
C)   progesterones.
D)   androgens.
E)   follicle-stimulating hormones.F) C) and D)
G) A) and D)

Question 15

The events of the birthing process use positive feedback.The stretching of the cervix during prelabor or stage 1 of labor causes the hypothalamus to trigger the pituitary gland to release the hormone oxytocin,which causes uterine contractions.

Accepted Answer

A) True 
 B)False

Question 16

In organisms that reproduce sexually,________ are the sex cells that carry the genetic information from each parent.

Accepted Answer

A)   diploid zygotes
B)   haploid zygotes
C)   haploid gametes
D)   diploid gametes
E)   diploid hormonesF) A) and B)
G) A) and C)

Question 17

The gland that forms from ruptured follicle cells in the ovary and secretes estrogen and progesterone is the

Accepted Answer

A)   labia majora.
B)   prostate gland.
C)   seminal vesicle.
D)   clitoris.
E)   corpus luteum.F) A) and E)
G) B) and C)

Question 18

A tubal ligation is a surgical procedure in which the Fallopian tubes are severed,and then tied.How would this cause sterility?

Accepted Answer

A)   Oocytes cannot be produced by meiosis.
B)   Oocytes cannot move to the uterus.
C)   Oocytes cannot be produced by mitosis.
D)   A woman cannot have an orgasm.
E)   The ovary stops producing estrogen.F) A) and E)
G) A) and B)

Question 19

The second stage of prenatal development is the fetal stage.

Accepted Answer

A) True 
 B)False

Question 20

Male athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because the synthetic steroids cause

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) B) and D)
G) A) and E)

Exam 30: Animal Reproduction and Development

Male athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because the synthetic steroids cause

Correct AnswerverifiedShow Answer

The gland that forms from ruptured follicle cells in the ovary and secretes estrogen and progesterone is the

Correct AnswerverifiedShow Answer

The second stage of prenatal development is the fetal stage.

Correct AnswerverifiedShow Answer

The hormone released by the anterior pituitary that triggers ovulation and transforms the ruptured follicle into the corpus luteum is

Correct AnswerverifiedShow Answer

Which statement about sexually transmitted infections is wrong?

Correct AnswerverifiedShow Answer

The tube-like structure that serves as the birth canal in the human female is the

Correct AnswerverifiedShow Answer

In human males,the different types of male sex hormones are collectively called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The tightly coiled structure/s inside the testes that produce the sperm cells is/are the

Correct AnswerverifiedShow Answer

Which of the following STIs is caused by a protist?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Taking antibiotics can disrupt the microbial community of the vagina and create an opportunity for the yeast Candida albicans to cause an infection.

Correct AnswerverifiedShow Answer

In a secondary oocyte,meiosis is arrested in metaphase II until

Correct AnswerverifiedShow Answer

In organisms that reproduce sexually,________ are the sex cells that carry the genetic information from each parent.

Correct AnswerverifiedShow Answer

Although not viable in humans,what is the result if two sperm fertilized an egg?

Correct AnswerverifiedShow Answer

The events of the birthing process use positive feedback.The stretching of the cervix during prelabor or stage 1 of labor causes the hypothalamus to trigger the pituitary gland to release the hormone oxytocin,which causes uterine contractions.

Correct AnswerverifiedShow Answer

The process that unites the male gamete with the female gamete in organisms that reproduce sexually is termed

Correct AnswerverifiedShow Answer

The diploid first cell of a new organism is a(n)

Correct AnswerverifiedShow Answer

A tubal ligation is a surgical procedure in which the Fallopian tubes are severed,and then tied.How would this cause sterility?

Correct AnswerverifiedShow Answer

In humans,the transparent sac that contains fluid that cushions the embryo and maintains a constant temperature and pressure is the

Correct AnswerverifiedShow Answer

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