Question 1

Injections of which hormone will induce labor in a pregnant woman?

Accepted Answer

A)  Estrogen 
B)  Human chorionic gonadotropin 
C)  Progesterone 
D)  Oxytocin 
E)  Prolactin 
A)  Estrogen 
B)  Human chorionic gonadotropin 
C)  Progesterone 
D)  Oxytocin 
E)  Prolactin

Question 2

What is the correct order of the structures through which sperm pass in the human male from the time they are produced to ejaculation?

Accepted Answer

A)  Vas deferens,seminiferous tubules,epididymis,urethra 
B)  Epididymis,seminiferous tubules,vas deferens,urethra 
C)  Seminiferous tubules,vas deferens,epididymis,urethra 
D)  Seminiferous tubules,epididymis,vas deferens,urethra 
E)  Vas deferens,urethra,epididymis,seminiferous tubules 
A)  Vas deferens,seminiferous tubules,epididymis,urethra 
B)  Epididymis,seminiferous tubules,vas deferens,urethra 
C)  Seminiferous tubules,vas deferens,epididymis,urethra 
D)  Seminiferous tubules,epididymis,vas deferens,urethra 
E)  Vas deferens,urethra,epididymis,seminiferous tubules

Question 3

You are a genetic counselor presented with a case in which a woman's cells,upon genetic analysis,are found to carry a Y chromosome.A likely explanation for why this woman is not phenotypically male is that

Accepted Answer

A)  her genotype is XXY. 
B)  her Y chromosome is missing the SRY gene. 
C)  she inherited two X chromosomes from her biological mother. 
D)  she inherited both an X and Y chromosome from her biological father. 
E)  she was exposed to higher than normal temperatures in utero. 
A)  her genotype is XXY. 
B)  her Y chromosome is missing the SRY gene. 
C)  she inherited two X chromosomes from her biological mother. 
D)  she inherited both an X and Y chromosome from her biological father. 
E)  she was exposed to higher than normal temperatures in utero.

Question 4

Which of the following is the most likely advantage of hermaphroditism?

Accepted Answer

A)  For a given species,every organism is a potential mate. 
B)  As compared to species with two distinct sexes,hermaphrodites require simpler behavior patterns for mate selection. 
C)  More rapid reproduction of genetically successful individuals is possible through asexual reproduction as compared to sexual reproduction. 
D)  Complex hormonal control and feedback mechanisms are not required for reproduction. 
E)  It requires fewer accessory organs for release of gametes in a single individual. 
A)  For a given species,every organism is a potential mate. 
B)  As compared to species with two distinct sexes,hermaphrodites require simpler behavior patterns for mate selection. 
C)  More rapid reproduction of genetically successful individuals is possible through asexual reproduction as compared to sexual reproduction. 
D)  Complex hormonal control and feedback mechanisms are not required for reproduction. 
E)  It requires fewer accessory organs for release of gametes in a single individual.

Question 5

Spermatogenesis and oogenesis differ in that

Accepted Answer

A)  spermatogenesis produces gametes with greater stores of raw materials than those produced by oogenesis. 
B)  developing sperm remain in prophase of the first meiotic division longer than oocytes do. 
C)  oogenesis produces four equally functional haploid cells per meiotic event and spermatogenesis does not. 
D)  spermatogenesis produces many gametes with meager energy reserves,whereas oogenesis produces relatively few,well-provisioned gametes. 
E)  spermatogenesis begins before birth in humans,whereas oogenesis does not start until the onset of puberty. 
A)  spermatogenesis produces gametes with greater stores of raw materials than those produced by oogenesis. 
B)  developing sperm remain in prophase of the first meiotic division longer than oocytes do. 
C)  oogenesis produces four equally functional haploid cells per meiotic event and spermatogenesis does not. 
D)  spermatogenesis produces many gametes with meager energy reserves,whereas oogenesis produces relatively few,well-provisioned gametes. 
E)  spermatogenesis begins before birth in humans,whereas oogenesis does not start until the onset of puberty.

Question 6

Contractions of muscles in the uterine wall and milk release from mammary glands are stimulated by

Accepted Answer

A)  progesterone. 
B)  estrogen. 
C)  prolactin. 
D)  oxytocin. 
E)  human chorionic gonadotropin. 
A)  progesterone. 
B)  estrogen. 
C)  prolactin. 
D)  oxytocin. 
E)  human chorionic gonadotropin.

Question 7

The intrauterine device is a means of birth control that prevents

Accepted Answer

A)  ovulation. 
B)  fertilization. 
C)  implantation. 
D)  ejaculation. 
E)  sperm from reaching the egg. 
A)  ovulation. 
B)  fertilization. 
C)  implantation. 
D)  ejaculation. 
E)  sperm from reaching the egg.

Question 8

When a woman has eggs harvested from her ovaries for in vitro fertilization,a physician uses laparoscopy to examine the surface of her ovaries,looking for any large blister-like structure about 2 cm in diameter.Contained within the blister is a(n)_______;this procedure would be done _______ of her menstrual cycle.

Accepted Answer

A)  corpus luteum;just past the midpoint 
B)  primary follicle;on the last day 
C)  germ cell in mitotic arrest;on the fourteenth day 
D)  ovum in mitosis;on the first day 
E)  oocyte;at the midpoint 
A)  corpus luteum;just past the midpoint 
B)  primary follicle;on the last day 
C)  germ cell in mitotic arrest;on the fourteenth day 
D)  ovum in mitosis;on the first day 
E)  oocyte;at the midpoint

Question 9

In animals,sexual reproduction requires

Accepted Answer

A)  an egg and sperm,each with a diploid number of chromosomes (2n). 
B)  the production of gametes through mitosis. 
C)  specialized cells with a haploid number of chromosomes (n). 
D)  the placement of sperm within the female's reproductive tract. 
E)  a penis in males and a uterus in females. 
A)  an egg and sperm,each with a diploid number of chromosomes (2n). 
B)  the production of gametes through mitosis. 
C)  specialized cells with a haploid number of chromosomes (n). 
D)  the placement of sperm within the female's reproductive tract. 
E)  a penis in males and a uterus in females.

Question 10

Use the following to answer questions :
Refer to the diagram below.  
-If the diagram is showing cells of the sea urchin,then the process taking place at label 1 occurs in _______,and the cell labeled 3 is _______.

Accepted Answer

A)  the ovary and testis of adult females and males;haploid 
B)  the hermaphroditic gonad of an adult;diploid 
C)  the gonads of adult males and females;in seawater 
D)  seawater;diploid 
E)  the adult gonads;in the uterus of an adult female 
A)  the ovary and testis of adult females and males;haploid 
B)  the hermaphroditic gonad of an adult;diploid 
C)  the gonads of adult males and females;in seawater 
D)  seawater;diploid 
E)  the adult gonads;in the uterus of an adult female

Question 11

Of the methods listed,which is the most effective form of birth control?

Accepted Answer

A)  Vasectomy 
B)  Condom 
C)  Intrauterine device 
D)  Rhythm method 
E)  Birth control pill 
A)  Vasectomy 
B)  Condom 
C)  Intrauterine device 
D)  Rhythm method 
E)  Birth control pill

Question 12

In the diagram below of reproductive structures found in a male mammal,sperm that have both an acrosome and flagellum would likely be found in the region(s)marked

Accepted Answer

A)  1 only. 
B)  2 only. 
C)  3 only. 
D)  2 and 3 only. 
E)  1,2,and 3. 
A)  1 only. 
B)  2 only. 
C)  3 only. 
D)  2 and 3 only. 
E)  1,2,and 3.

Question 13

When a woman chooses to use in vitro fertilization to achieve a pregnancy,she must take a drug that causes her to superovulate-meaning that her ovaries are stimulated to release more than one egg in a month.An effective drug for this purpose would be one that

Accepted Answer

A)  increases the secretion of LH from the ovary. 
B)  increases the secretion of FSH from the ovary. 
C)  decreases the release of GnRH from the hypothalamus. 
D)  increases the release of GnRH from the hypothalamus. 
E)  decreases the secretion of LH and FSH. 
A)  increases the secretion of LH from the ovary. 
B)  increases the secretion of FSH from the ovary. 
C)  decreases the release of GnRH from the hypothalamus. 
D)  increases the release of GnRH from the hypothalamus. 
E)  decreases the secretion of LH and FSH.

Question 14

A vasectomy is a minor operation that involves cutting the _______ and tying off the loose ends.

Accepted Answer

A)  epididymis 
B)  urethra 
C)  oviduct 
D)  vas deferens 
E)  seminiferous tubules 
A)  epididymis 
B)  urethra 
C)  oviduct 
D)  vas deferens 
E)  seminiferous tubules

Question 15

The hormone that normally triggers mammalian ovulation is

Accepted Answer

A)  progesterone. 
B)  follicle-stimulating hormone. 
C)  luteinizing hormone. 
D)  estrogen. 
E)  prolactin. 
A)  progesterone. 
B)  follicle-stimulating hormone. 
C)  luteinizing hormone. 
D)  estrogen. 
E)  prolactin.

Question 16

Which reproductive strategy would be the least efficient for animals living in an environment where conditions are relatively stable (e.g. ,in the depths of the ocean)?

Accepted Answer

A)  Budding 
B)  Gametogenesis 
C)  Fission 
D)  Regeneration 
E)  All are equally efficient. 
A)  Budding 
B)  Gametogenesis 
C)  Fission 
D)  Regeneration 
E)  All are equally efficient.

Question 17

Over-the-counter pregnancy tests detect the presence of

Accepted Answer

A)  human chorionic gonadotropin. 
B)  follicle-stimulating hormone. 
C)  luteinizing hormone. 
D)  estrogen. 
E)  progesterone. 
A)  human chorionic gonadotropin. 
B)  follicle-stimulating hormone. 
C)  luteinizing hormone. 
D)  estrogen. 
E)  progesterone.

Question 18

Which environment would be the most likely to provide examples of animals that reproduce by external fertilization?

Accepted Answer

A)  Forest floor 
B)  Tree canopy 
C)  Desert 
D)  Rapids of a stream 
E)  Ocean 
A)  Forest floor 
B)  Tree canopy 
C)  Desert 
D)  Rapids of a stream 
E)  Ocean

Question 19

In humans,the blastocyst normally implants within the

Accepted Answer

A)  vas deferens. 
B)  ovarian follicle tissue. 
C)  endometrium of the uterus. 
D)  myometrium of the vagina. 
E)  cervix. 
A)  vas deferens. 
B)  ovarian follicle tissue. 
C)  endometrium of the uterus. 
D)  myometrium of the vagina. 
E)  cervix.

Question 20

If a man develops testicular cancer and has the affected testicle removed,an initial consequence of this operation will be

Accepted Answer

A)  absence of mature sperm. 
B)  lower testosterone levels. 
C)  absence of testosterone. 
D)  absence of LH. 
E)  increased levels of male sex hormone. 
A)  absence of mature sperm. 
B)  lower testosterone levels. 
C)  absence of testosterone. 
D)  absence of LH. 
E)  increased levels of male sex hormone.

Exam 37: Animal Reproduction

Injections of which hormone will induce labor in a pregnant woman?

What is the correct order of the structures through which sperm pass in the human male from the time they are produced to ejaculation?

You are a genetic counselor presented with a case in which a woman's cells,upon genetic analysis,are found to carry a Y chromosome.A likely explanation for why this woman is not phenotypically male is that

Which of the following is the most likely advantage of hermaphroditism?

Spermatogenesis and oogenesis differ in that

Contractions of muscles in the uterine wall and milk release from mammary glands are stimulated by

The intrauterine device is a means of birth control that prevents

In animals,sexual reproduction requires

Use the following to answer questions : Refer to the diagram below. -If the diagram is showing cells of the sea urchin,then the process taking place at label 1 occurs in _______,and the cell labeled 3 is _______.

Of the methods listed,which is the most effective form of birth control?

In the diagram below of reproductive structures found in a male mammal,sperm that have both an acrosome and flagellum would likely be found in the region(s)marked

When a woman chooses to use in vitro fertilization to achieve a pregnancy,she must take a drug that causes her to superovulate-meaning that her ovaries are stimulated to release more than one egg in a month.An effective drug for this purpose would be one that

A vasectomy is a minor operation that involves cutting the _______ and tying off the loose ends.

The hormone that normally triggers mammalian ovulation is

Which reproductive strategy would be the least efficient for animals living in an environment where conditions are relatively stable (e.g. ,in the depths of the ocean)?

Over-the-counter pregnancy tests detect the presence of

Which environment would be the most likely to provide examples of animals that reproduce by external fertilization?

In humans,the blastocyst normally implants within the

If a man develops testicular cancer and has the affected testicle removed,an initial consequence of this operation will be

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

Filters

Use the following to answer questions : Refer to the diagram below. -If the diagram is showing cells of the sea urchin,then the process taking place at label 1 occurs in _,and the cell labeled 3 is _.