Question 1

An oocyte released from a human ovary enters the oviduct as a result of

Accepted Answer

A) the beating action of the flagellum on the oocyte. 
B) the force of the follicular ejection directing the oocyte into the oviduct. 
C) the wavelike beating of cilia lining the oviduct. 
D) movement of the oocyte through the pulsating uterus into the oviduct. 
E) peristaltic contraction of ovarian muscles. 
A) the beating action of the flagellum on the oocyte. 
B) the force of the follicular ejection directing the oocyte into the oviduct. 
C) the wavelike beating of cilia lining the oviduct. 
D) movement of the oocyte through the pulsating uterus into the oviduct. 
E) peristaltic contraction of ovarian muscles. C

Question 2

Fertilization of human eggs usually takes place in the

Accepted Answer

A) ovary. 
B) uterus. 
C) vagina. 
D) oviduct. 
E) cervix. 
A) ovary. 
B) uterus. 
C) vagina. 
D) oviduct. 
E) cervix. D

Question 3

Ovulation is the follicular response to a burst of secretion of

Accepted Answer

A) LH. 
B) progesterone. 
C) inhibin. 
D) prolactin. 
E) estradiol. 
A) LH. 
B) progesterone. 
C) inhibin. 
D) prolactin. 
E) estradiol. A

Question 4

The primary function of the corpus luteum is to

Accepted Answer

A) nourish and protect the egg cell. 
B) produce prolactin in the alveoli. 
C) maintain progesterone and estrogen synthesis after ovulation has occurred. 
D) stimulate the development of the mammary glands. 
E) support pregnancy in the second and third trimesters. 
A) nourish and protect the egg cell. 
B) produce prolactin in the alveoli. 
C) maintain progesterone and estrogen synthesis after ovulation has occurred. 
D) stimulate the development of the mammary glands. 
E) support pregnancy in the second and third trimesters.

Question 5

Human fertility drugs taken by women increase the chance of multiple births, probably because they

Accepted Answer

A) enhance implantation opportunities. 
B) stimulate the development of many ovarian follicles. 
C) mimic progesterone action in the uterus. 
D) stimulate steroidogenesis. 
E) delay parturition. 
A) enhance implantation opportunities. 
B) stimulate the development of many ovarian follicles. 
C) mimic progesterone action in the uterus. 
D) stimulate steroidogenesis. 
E) delay parturition.

Question 6

If the LH surge is inhibited during the ovarian cycle, which of the following events would not occur?

Accepted Answer

A) release of FSH from the pituitary gland 
B) production of estradiol by the follicle 
C) maturation of the primary follicle 
D) ovulation of the secondary oocyte 
E) release of GnRH from the hypothalamus 
A) release of FSH from the pituitary gland 
B) production of estradiol by the follicle 
C) maturation of the primary follicle 
D) ovulation of the secondary oocyte 
E) release of GnRH from the hypothalamus

Question 7

Pelvic inflammatory disease (PID)is an infection of the female reproductive organs. PID can result from an untreated gonorrhea or chlamydia infection and is of serious concern because it can ultimately lead to I. ectopic pregnancy.
II. death.
III. infertility.

Accepted Answer

A) I only 
B) II only. 
C) III only. 
D) I and III. 
E) I, II, and III. 
A) I only 
B) II only. 
C) III only. 
D) I and III. 
E) I, II, and III.

Question 8

Among these contraception methods, the highest risk of accidental pregnancy accompanies

Accepted Answer

A) the use of a diaphragm. 
B) the use of a condom. 
C) the practice of coitus interruptus. 
D) a verified vasectomy. 
E) the practice of the "rhythm method." 
A) the use of a diaphragm. 
B) the use of a condom. 
C) the practice of coitus interruptus. 
D) a verified vasectomy. 
E) the practice of the "rhythm method."

Question 9

Sexual reproduction

Accepted Answer

A) allows animals to conserve resources and reproduce only during optimal conditions. 
B) can produce diverse phenotypes that may enhance survival of a population in a changing environment. 
C) yields more numerous offspring more rapidly than is possible with asexual reproduction. 
D) enables males and females to remain isolated from each other while rapidly colonizing habitats. 
E) guarantees that both parents will provide care for each offspring. 
A) allows animals to conserve resources and reproduce only during optimal conditions. 
B) can produce diverse phenotypes that may enhance survival of a population in a changing environment. 
C) yields more numerous offspring more rapidly than is possible with asexual reproduction. 
D) enables males and females to remain isolated from each other while rapidly colonizing habitats. 
E) guarantees that both parents will provide care for each offspring.

Question 10

Females of many insect species, including honeybee queens, can store gametes shed by their mating partners in

Accepted Answer

A) their nests. 
B) the abdominal tract. 
C) the cloaca. 
D) the uterus. 
E) the spermatheca. 
A) their nests. 
B) the abdominal tract. 
C) the cloaca. 
D) the uterus. 
E) the spermatheca.

Question 11

For lactation to take place, the synthesis of breast milk and its release from the mammary gland, respectively, are caused by

Accepted Answer

A) testosterone and dihydrotestosterone. 
B) estrogen and progesterone. 
C) cortisol and testosterone. 
D) prolactin and oxytocin. 
E) luteinizing hormone and follicle-stimulating hormone. 
A) testosterone and dihydrotestosterone. 
B) estrogen and progesterone. 
C) cortisol and testosterone. 
D) prolactin and oxytocin. 
E) luteinizing hormone and follicle-stimulating hormone.

Question 12

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 13

A high rate of metabolic activity is maintained in the pregnant uterus by

Accepted Answer

A) inhibin. 
B) testosterone. 
C) oxytocin. 
D) prolactin. 
E) progesterone. 
A) inhibin. 
B) testosterone. 
C) oxytocin. 
D) prolactin. 
E) progesterone.

Question 14

Use the following information for the next few questions.
The manager of a large commercial aquaculture station wants to bring silver carp (Hypophthalmichthys molitrix) into Canada for use in his facility. Many government organizations are worried about the carp escaping into local waterways and devastating native flora and fauna.
-Which of the following hormones could be used to sterilize males?

Accepted Answer

A) testosterone 
B) estrogen 
C) oxytocin 
D) prolactin 
E) GnRH 
A) testosterone 
B) estrogen 
C) oxytocin 
D) prolactin 
E) GnRH

Question 15

All individuals of a particular species of whiptail lizards are females. Their reproductive efforts depend on

Accepted Answer

A) fertilization of their eggs by males of other lizard species. 
B) gonadal structures that only undergo mitosis. 
C) meiosis followed by a doubling of the chromosomes in eggs. 
D) budding prior to the development of a sexual phenotype. 
E) fragmentation via autolysis. 
A) fertilization of their eggs by males of other lizard species. 
B) gonadal structures that only undergo mitosis. 
C) meiosis followed by a doubling of the chromosomes in eggs. 
D) budding prior to the development of a sexual phenotype. 
E) fragmentation via autolysis.

Question 16

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 17

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 18

Genetic mutations in asexually reproducing organisms lead to more evolutionary change than do genetic mutations in sexually reproducing ones because

Accepted Answer

A) asexually reproducing organisms, but not sexually reproducing organisms, pass all mutations on to their offspring. 
B) asexually reproducing organisms devote more time and energy to the process of reproduction than do sexually reproducing organisms. 
C) sexually reproducing organisms can produce more offspring in a given time than can sexually reproducing organisms. 
D) more genetic variation is present in organisms that reproduce asexually than is present in those that reproduce sexually. 
E) asexually reproducing organisms have more dominant genes than organisms that reproduce sexually. 
A) asexually reproducing organisms, but not sexually reproducing organisms, pass all mutations on to their offspring. 
B) asexually reproducing organisms devote more time and energy to the process of reproduction than do sexually reproducing organisms. 
C) sexually reproducing organisms can produce more offspring in a given time than can sexually reproducing organisms. 
D) more genetic variation is present in organisms that reproduce asexually than is present in those that reproduce sexually. 
E) asexually reproducing organisms have more dominant genes than organisms that reproduce sexually.

Question 19

Labour contractions can be increased by the medical use of a synthetic drug that mimics the action of

Accepted Answer

A) inhibin. 
B) luteinizing hormone. 
C) oxytocin. 
D) prolactin. 
E) vasopressin. 
A) inhibin. 
B) luteinizing hormone. 
C) oxytocin. 
D) prolactin. 
E) vasopressin.

Question 20

So-called "combination" birth control pills function in contraception by

Accepted Answer

A) inhibiting the release of GnRH, FSH, and LH. 
B) irritating the uterine lining so as to prevent implantation. 
C) causing spontaneous abortions. 
D) blocking progesterone receptors, so that pregnancy cannot be maintained. 
E) binding to and inactivating any sperm that enter the oviduct. 
A) inhibiting the release of GnRH, FSH, and LH. 
B) irritating the uterine lining so as to prevent implantation. 
C) causing spontaneous abortions. 
D) blocking progesterone receptors, so that pregnancy cannot be maintained. 
E) binding to and inactivating any sperm that enter the oviduct.

Exam 46: Animal Reproduction

An oocyte released from a human ovary enters the oviduct as a result of

Fertilization of human eggs usually takes place in the

Ovulation is the follicular response to a burst of secretion of

The primary function of the corpus luteum is to

Human fertility drugs taken by women increase the chance of multiple births, probably because they

If the LH surge is inhibited during the ovarian cycle, which of the following events would not occur?

Pelvic inflammatory disease (PID)is an infection of the female reproductive organs. PID can result from an untreated gonorrhea or chlamydia infection and is of serious concern because it can ultimately lead to I. ectopic pregnancy. II. death. III. infertility.

Among these contraception methods, the highest risk of accidental pregnancy accompanies

Sexual reproduction

Females of many insect species, including honeybee queens, can store gametes shed by their mating partners in

For lactation to take place, the synthesis of breast milk and its release from the mammary gland, respectively, are caused by

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?

A high rate of metabolic activity is maintained in the pregnant uterus by

All individuals of a particular species of whiptail lizards are females. Their reproductive efforts depend on

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

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

Genetic mutations in asexually reproducing organisms lead to more evolutionary change than do genetic mutations in sexually reproducing ones because

Labour contractions can be increased by the medical use of a synthetic drug that mimics the action of

So-called "combination" birth control pills function in contraception by

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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