Question 1

During human gestation,rudiments of all organs develop

Accepted Answer

A) in the first trimester. 
B) in the second trimester. 
C) in the third trimester. 
D) while the embryo is in the oviduct. 
E) during the blastocyst stage. 
A) in the first trimester. 
B) in the second trimester. 
C) in the third trimester. 
D) while the embryo is in the oviduct. 
E) during the blastocyst stage.

Question 2

In correct chronological order,the three phases of the human uterine cycle are

Accepted Answer

A) menstrual → ovulation → luteal. 
B) follicular → luteal → secretory. 
C) menstrual → proliferative → secretory. 
D) follicular → ovulation → luteal. 
E) proliferative → luteal → ovulation. 
A) menstrual → ovulation → luteal. 
B) follicular → luteal → secretory. 
C) menstrual → proliferative → secretory. 
D) follicular → ovulation → luteal. 
E) proliferative → luteal → ovulation.

Question 3

Refer to the following figure,which diagrams the reproductive anatomy of the human female,to answer the following questions.
  
-In the above figure,which letter points to the corpus luteum?

Accepted Answer

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

Question 4

You observe vertebrate organisms with parthenogenetic reproduction,internal development of embryos,and the lack of parental care for its young.Based on this information,you would likely categorize these organisms as

Accepted Answer

A) earthworms. 
B) lizards. 
C) birds. 
D) frogs. 
E) mammals. 
A) earthworms. 
B) lizards. 
C) birds. 
D) frogs. 
E) mammals.

Question 5

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

Accepted Answer

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

Question 6

A woman works as a bartender at a local night club.After missing several shifts due to persistent nausea,she decides to visit her doctor.After performing routine tests,the doctor informs her that she is approximately 5 weeks pregnant.However,3 weeks prior,the woman had a chiropractor appointment in which she had an x-ray to assess her spinal alignment.Why is this of concern for the developing embryo?

Accepted Answer

A) Radiation can inhibit the implantation of the embryo in the endometrium. 
B) The x-ray could damage the GnRH pathway from the hypothalamus. 
C) Oogenesis occurs in the first trimester and can be damaged by radiation and drugs. 
D) Organogenesis occurs in the first trimester and can be damaged by radiation and drugs. 
E) Radiation from the x-ray can increase the chance of the embryo splitting, resulting in dizygotic twins. 
A) Radiation can inhibit the implantation of the embryo in the endometrium. 
B) The x-ray could damage the GnRH pathway from the hypothalamus. 
C) Oogenesis occurs in the first trimester and can be damaged by radiation and drugs. 
D) Organogenesis occurs in the first trimester and can be damaged by radiation and drugs. 
E) Radiation from the x-ray can increase the chance of the embryo splitting, resulting in dizygotic twins.

Question 7

Refer to the following figure,which diagrams the reproductive anatomy of the human male,to answer the following questions.
  
-In the above figure,which letter points to the testis?

Accepted Answer

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

Question 8

The use of birth control pills (oral contraceptives)

Accepted Answer

A) reduces the incidence of ovulation. 
B) prevents fertilization by keeping the sperm and egg physically separated by a mechanical barrier. 
C) prevents implantation of an embryo. 
D) prevents sperm from exiting the male urethra. 
E) prevents oocytes from entering the uterus. 
A) reduces the incidence of ovulation. 
B) prevents fertilization by keeping the sperm and egg physically separated by a mechanical barrier. 
C) prevents implantation of an embryo. 
D) prevents sperm from exiting the male urethra. 
E) prevents oocytes from entering the uterus.

Question 9

A function-disrupting mutation in the progesterone receptor gene would likely result in

Accepted Answer

A) the absence of secondary sex characteristics. 
B) the absence of pituitary gonadotropin hormones. 
C) the inability of the uterus to support pregnancy. 
D) enlarged and hyperactive uterine endometrium. 
E) the absence of mammary gland development. 
A) the absence of secondary sex characteristics. 
B) the absence of pituitary gonadotropin hormones. 
C) the inability of the uterus to support pregnancy. 
D) enlarged and hyperactive uterine endometrium. 
E) the absence of mammary gland development.

Question 10

At the time of fertilization,the complete maturation of each oogonium has resulted in

Accepted Answer

A) one secondary oocyte. 
B) two primary oocytes. 
C) four secondary oocytes. 
D) four primary oocytes. 
E) four zygotes. 
A) one secondary oocyte. 
B) two primary oocytes. 
C) four secondary oocytes. 
D) four primary oocytes. 
E) four zygotes.

Question 11

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

Accepted Answer

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

Question 12

The drug RU-486 functions by

Accepted Answer

A) inhibiting release of gonadotropins from the pituitary. 
B) blocking progesterone receptors in the uterus. 
C) preventing release of the secondary oocyte from the ovary. 
D) reducing sexual interest. 
E) prolonging the endurance of the corpus luteum. 
A) inhibiting release of gonadotropins from the pituitary. 
B) blocking progesterone receptors in the uterus. 
C) preventing release of the secondary oocyte from the ovary. 
D) reducing sexual interest. 
E) prolonging the endurance of the corpus luteum.

Question 13

The "immunotolerance" of a pregnant woman toward her unborn child is the result of

Accepted Answer

A) the tenacity with which the unborn child's immune system counteracts the woman's immune system. 
B) the relative quiescence of a pregnant woman's immune system compared to when she was not pregnant. 
C) the complete physical separation of her cells from those of the unborn child. 
D) the unborn child having enough of the woman's identity so as to escape detection as foreign. 
E) modern medical intervention during every pregnancy. 
A) the tenacity with which the unborn child's immune system counteracts the woman's immune system. 
B) the relative quiescence of a pregnant woman's immune system compared to when she was not pregnant. 
C) the complete physical separation of her cells from those of the unborn child. 
D) the unborn child having enough of the woman's identity so as to escape detection as foreign. 
E) modern medical intervention during every pregnancy.

Question 14

Animals with reproduction dependent on internal fertilization need not have

Accepted Answer

A) any copulatory organs. 
B) a receptacle that receives sperm. 
C) behavioural interaction between males and females. 
D) internal development of embryos. 
E) haploid gametes. 
A) any copulatory organs. 
B) a receptacle that receives sperm. 
C) behavioural interaction between males and females. 
D) internal development of embryos. 
E) haploid gametes.

Question 15

In male mammals,excretory and reproductive systems share

Accepted Answer

A) the testes. 
B) the urethra. 
C) the seminal vesicle. 
D) the vas deferens. 
E) the prostate. 
A) the testes. 
B) the urethra. 
C) the seminal vesicle. 
D) the vas deferens. 
E) the prostate.

Question 16

Which statement about human reproduction is false?

Accepted Answer

A) Fertilization occurs in the oviduct. 
B) Effective hormonal contraceptives are currently available only for females. 
C) An oocyte completes meiosis after a sperm penetrates it. 
D) The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules. 
E) Spermatogenesis and oogenesis require different temperatures. 
A) Fertilization occurs in the oviduct. 
B) Effective hormonal contraceptives are currently available only for females. 
C) An oocyte completes meiosis after a sperm penetrates it. 
D) The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules. 
E) Spermatogenesis and oogenesis require different temperatures.

Question 17

What makes sexually reproduced offspring genetically different from their parents?

Accepted Answer

A) genetic recombination during meiosis 
B) genetic recombination during mitosis 
C) crossing over during mitosis 
D) mutation immediately after fusion of egg and sperm 
E) Sexual reproduction does not produce offspring that are genetically different from their parents. 
A) genetic recombination during meiosis 
B) genetic recombination during mitosis 
C) crossing over during mitosis 
D) mutation immediately after fusion of egg and sperm 
E) Sexual reproduction does not produce offspring that are genetically different from their parents.

Question 18

Organisms with a reproductive pattern that produces shelled amniotic eggs generally

Accepted Answer

A) end up having a higher embryo mortality rate than do organisms with unprotected embryos. 
B) invest most of their reproductive energy in the embryonic and early postnatal development of their offspring. 
C) invest more energy in parenting than do placental animals. 
D) produce more gametes than do those animals with external fertilization and development. 
E) lower their embryo mortality rate to less than one in a thousand. 
A) end up having a higher embryo mortality rate than do organisms with unprotected embryos. 
B) invest most of their reproductive energy in the embryonic and early postnatal development of their offspring. 
C) invest more energy in parenting than do placental animals. 
D) produce more gametes than do those animals with external fertilization and development. 
E) lower their embryo mortality rate to less than one in a thousand.

Question 19

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

Accepted Answer

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

Question 20

Refer to the following figure,which diagrams the reproductive anatomy of the human male,to answer the following questions.
  
-In the above figure,which letter points to the vas deferens?

Accepted Answer

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

Exam 46: Animal Reproduction

During human gestation,rudiments of all organs develop

In correct chronological order,the three phases of the human uterine cycle are

Refer to the following figure,which diagrams the reproductive anatomy of the human female,to answer the following questions. -In the above figure,which letter points to the corpus luteum?

You observe vertebrate organisms with parthenogenetic reproduction,internal development of embryos,and the lack of parental care for its young.Based on this information,you would likely categorize these organisms as

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

Refer to the following figure,which diagrams the reproductive anatomy of the human male,to answer the following questions. -In the above figure,which letter points to the testis?

The use of birth control pills (oral contraceptives)

A function-disrupting mutation in the progesterone receptor gene would likely result in

At the time of fertilization,the complete maturation of each oogonium has resulted in

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

The drug RU-486 functions by

The "immunotolerance" of a pregnant woman toward her unborn child is the result of

Animals with reproduction dependent on internal fertilization need not have

In male mammals,excretory and reproductive systems share

Which statement about human reproduction is false?

What makes sexually reproduced offspring genetically different from their parents?

Organisms with a reproductive pattern that produces shelled amniotic eggs generally

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

Refer to the following figure,which diagrams the reproductive anatomy of the human male,to answer the following questions. -In the above figure,which letter points to the vas deferens?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Regulation of Gene Expression

Viruses

DNA Tools and Biotechnology

Genomes and Their Evolution

Descent with Modification: A Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity II: The Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Plant Structure,Growth,and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Development

Neurons,Synapses,and Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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