Question 1

Which of the following cells are haploid?

Accepted Answer

A)  oogonium
B)  primary spermatocyte
C)  primary oocyte
D)  ovum
E)  spermatogoniumF) B) and E)
G) D) and E)

Question 2

In what order do sperm move through the structures of the female reproductive tract?

Accepted Answer

A)  cervix,vagina,uterus,oviduct
B)  vagina,uterus,oviduct,ovary
C)  vagina,cervix,uterus,oviduct
D)  endometrium,cervix,uterus,oviduct
E)  ovary,oviduct,uterus,vaginaF) A) and D)
G) C) and D)

Question 3

The outcome of cleavage during embryonic development is the production of a

Accepted Answer

A)  blastulA.
B)  gastrula.
C)  neurula.
D)  substantially larger embryo.
E)  None of the choices are correct.F) All of the above
G) A) and E)

Question 4

Which event of fertilization occurs first?

Accepted Answer

A)  vitelline layer hardens
B)  the entry of sperm DNA into the egg
C)  cleavage
D)  the acrosomal reaction
E)  the cortical reactionF) D) and E)
G) C) and D)

Question 5

Which of the following lists the structures of the male reproductive tract in the proper order from sperm production to ejaculation?

Accepted Answer

A)  vas deferens,epididymis,seminiferous tubules,ejaculatory duct,urethra
B)  seminal vesicles,vas deferens,prostate,urethra,ejaculatory duct
C)  seminiferous tubules,epididymis,vas deferens,ejaculatory duct,urethra
D)  vas deferens,epididymis,seminal vesicles,ejaculatory duct,urethra
E)  epididymis,seminiferous tubules,ejaculatory duct,vas deferens,urethraF) B) and E)
G) B) and C)

Question 6

The inability of a man to produce LH would result in

Accepted Answer

A)  the inability of Leydig cells to produce testosterone.
B)  the inability of the anterior pituitary to produce FSH.
C)  the loss of positive feedback control on FSH release.
D)  decreased GnRH production by the hypothalamus.
E)  exaggerated secondary sex characteristics.F) C) and D)
G) B) and E)

Question 7

Which of the choices lists the three phases of the ovarian cycle in the correct order?

Accepted Answer

A)  follicular,luteal,ovulation
B)  follicular,proliferative,secretory
C)  luteal,ovulation,secretory
D)  follicular,ovulation,luteal
E)  luteal,secretory,ovulationF) All of the above
G) None of the above

Question 8

The sperm and its DNA enters the egg through simple diffusion through the egg plasma membrane.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following hormones stimulates uterine contractions during the birth process in mammals?

Accepted Answer

A)  oxytocin
B)  testosterone
C)  FSH
D)  chorionic gonadotropin
E)  LHF) A) and D)
G) None of the above

Question 10

Under the microscope,you observe the first few cell divisions of an embryo.Instead of dividing the entire ball,the divisions are only separating the top half into smaller and smaller spheres.The bottom half appears to remain as one large cell.What is a likely explanation?

Accepted Answer

A)  It is a bird or fish embryo.
B)  A developmental error has occurred.
C)  Gastrulation has occurred.
D)  The bottom half is the notochorD.E) A) and B)
F) All of the above

Question 11

If pregnancy does not occur,what hormome will decrease in concentration?

Accepted Answer

A)  chorionic gonadotropin
B)  progesterone
C)  FSH
D)  LHE) A) and B)
F) None of the above

Question 12

In mammals,gestation is defined physiologically as the time from _____ to birth.

Accepted Answer

A)  fertilization
B)  implantation
C)  blastocyst formation
D)  ovulation
E)  the first missed menstruationF) A) and E)
G) A) and D)

Question 13

Which of the following organisms would most likely produce asexually?

Accepted Answer

A)  a bird in an urban environment
B)  a lizard in an equatorial desert
C)  a mammal in a temperate forest
D)  a worker honeybeeE) None of the above
F) A) and D)

Question 14

Sexually transmitted diseases are a major cause of infertility.Knowing this,what method of birth control would you think is best for reducing infertility rates?

Accepted Answer

A)  diaphragm
B)  vasectomy
C)  condoms
D)  oral contraceptives
E)  IUDsF) None of the above
G) A) and B)

Question 15

What structures of the male and female reproductive systems share a common embryonic origin?

Accepted Answer

A)  clitoris and scrotum
B)  labia minora and penis
C)  clitoris and penis
D)  cervix and ejaculatory ductE) None of the above
F) B) and C)

Question 16

In female mammals,germ cells

Accepted Answer

A)  are not produced until puberty.
B)  are arrested in meiosis I until puberty.
C)  develop into fully mature gametes before birth.
D)  arrested in meiosis II until puberty.
E)  arrested in mitosis until puberty.F) C) and D)
G) B) and E)

Question 17

All types of internal fertilization require

Accepted Answer

A)  specialized anatomical structures.
B)  a penis in the male.
C)  transfer of a spermatophore to the female reproductive tract.
D)  a terrestrial environment.E) C) and D)
F) All of the above

Question 18

Many small creatures that live in temporary puddles can reproduce asexually at least occasionally.Why might this be a useful strategy for a puddle-dweller?

Accepted Answer

A)  Puddles are very stable environments,so well adapted creatures should maintain their genes without mixing.
B)  A single individual can quickly populate a transient environment.
C)  Using asexual reproduction increases genetic variety and thus adaptability.
D)  In asexual reproduction,the mother can choose the best of each chromosome to make the ideal haploid individual.E) B) and D)
F) A) and B)

Question 19

Sexual reproduction

Accepted Answer

A)  allows more offspring to be produced per individual.
B)  allows a parent to pass on 100% of their genes to offspring.
C)  increases genetic variation.
D)  results in the formation of a haploid zygote.
E)  only occurs in vertebrates.F) B) and E)
G) D) and E)

Question 20

You are a chemist designing a test to allow women to know when they have ovulated.Choose the best hormone for your test,which will indicate that ovulation has occured when detected at high levels.

Accepted Answer

A)  chorionic gonadotropin
B)  estradiol
C)  LH
D)  progesteroneE) All of the above
F) A) and B)

Exam 40: Animal Reproduction and Development

In what order do sperm move through the structures of the female reproductive tract?

Correct AnswerverifiedShow Answer

The sperm and its DNA enters the egg through simple diffusion through the egg plasma membrane.

Correct AnswerverifiedShow Answer

The inability of a man to produce LH would result in

Correct AnswerverifiedShow Answer

Which of the choices lists the three phases of the ovarian cycle in the correct order?

Correct AnswerverifiedShow Answer

Which event of fertilization occurs first?

Correct AnswerverifiedShow Answer

Which of the following hormones stimulates uterine contractions during the birth process in mammals?

Correct AnswerverifiedShow Answer

What structures of the male and female reproductive systems share a common embryonic origin?

Correct AnswerverifiedShow Answer

All types of internal fertilization require

Correct AnswerverifiedShow Answer

If pregnancy does not occur,what hormome will decrease in concentration?

Correct AnswerverifiedShow Answer

You are a chemist designing a test to allow women to know when they have ovulated.Choose the best hormone for your test,which will indicate that ovulation has occured when detected at high levels.

Correct AnswerverifiedShow Answer

Which of the following lists the structures of the male reproductive tract in the proper order from sperm production to ejaculation?

Correct AnswerverifiedShow Answer

Which of the following cells are haploid?

Correct AnswerverifiedShow Answer

Sexually transmitted diseases are a major cause of infertility.Knowing this,what method of birth control would you think is best for reducing infertility rates?

Correct AnswerverifiedShow Answer

The outcome of cleavage during embryonic development is the production of a

Correct AnswerverifiedShow Answer

Many small creatures that live in temporary puddles can reproduce asexually at least occasionally.Why might this be a useful strategy for a puddle-dweller?

Correct AnswerverifiedShow Answer

Under the microscope,you observe the first few cell divisions of an embryo.Instead of dividing the entire ball,the divisions are only separating the top half into smaller and smaller spheres.The bottom half appears to remain as one large cell.What is a likely explanation?

Correct AnswerverifiedShow Answer

Which of the following organisms would most likely produce asexually?

Correct AnswerverifiedShow Answer

In female mammals,germ cells

Correct AnswerverifiedShow Answer

In mammals,gestation is defined physiologically as the time from _____ to birth.

Correct AnswerverifiedShow Answer

Sexual reproduction

Correct AnswerverifiedShow Answer

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