Question 1

Hermaphroditism is a type of

Accepted Answer

A) asexual reproduction pattern only. 
B) sexual reproduction pattern only. 
C) both asexual and sexual reproduction patterns. 
A) asexual reproduction pattern only. 
B) sexual reproduction pattern only. 
C) both asexual and sexual reproduction patterns.

Question 2

Obesity is directly related to low testosterone levels.Why would this be of concern for a male-female couple interested in having a baby?

Accepted Answer

A) Testosterone is involved in sperm production,so obese males may be more likely to have infertility problems. 
B) Low testosterone levels in males will cause lower luteinizing hormone (LH)production in females during reproduction. 
C) Low testosterone levels in males will cause the adrenal glands to reduce production of other sex hormones. 
D) Low testosterone levels in males will cause their offspring to have delayed secondary sex characteristic development. 
A) Testosterone is involved in sperm production,so obese males may be more likely to have infertility problems. 
B) Low testosterone levels in males will cause lower luteinizing hormone (LH)production in females during reproduction. 
C) Low testosterone levels in males will cause the adrenal glands to reduce production of other sex hormones. 
D) Low testosterone levels in males will cause their offspring to have delayed secondary sex characteristic development.

Question 3

Inhibin is synthesized primarily by the

Accepted Answer

A) Sertoli cells. 
B) hypothalamus. 
C) Leydig cells. 
D) anterior pituitary gland. 
E) seminiferous tubules. 
A) Sertoli cells. 
B) hypothalamus. 
C) Leydig cells. 
D) anterior pituitary gland. 
E) seminiferous tubules.

Question 4

A contraceptive pill that continuously inhibits the release of gonadotropin-releasing hormone (GnRH)from the hypothalamus will

Accepted Answer

A) increase the production of estrogen and progesterone by the ovaries. 
B) initiate ovulation. 
C) reduce the secretion of gonadotropins from the anterior pituitary gland. 
D) stimulate the secretion of luteinizing hormone (LH)and follicle-stimulating hormone (FSH)from the posterior pituitary gland. 
E) increase the flow phase of the menstrual cycle. 
A) increase the production of estrogen and progesterone by the ovaries. 
B) initiate ovulation. 
C) reduce the secretion of gonadotropins from the anterior pituitary gland. 
D) stimulate the secretion of luteinizing hormone (LH)and follicle-stimulating hormone (FSH)from the posterior pituitary gland. 
E) increase the flow phase of the menstrual cycle.

Question 5

Contact of a sperm with signal molecules in the coat of an egg causes the sperm to undergo

Accepted Answer

A) mitosis. 
B) depolarization. 
C) gastrulation. 
D) asexual reproduction. 
E) the acrosomal reaction. 
A) mitosis. 
B) depolarization. 
C) gastrulation. 
D) asexual reproduction. 
E) the acrosomal reaction.

Question 6

Why might scientists want to figure out how to change sexually reproducing plants that are in high demand in agriculture into asexually reproducing plants?

Accepted Answer

A) Farmers would be able to harvest asexually producing plants in a more efficient manner because asexual reproduction has lower energy costs than sexual reproduction. 
B) Farmers who have to buy new seeds for high-demand plants would have their seed costs cut dramatically. 
C) High-demand plants,such as beans and corn,will have higher taste quality in asexually reproducing plants. 
D) Asexually reproducing plants require less water and fertilizer than sexually reproducing plants. 
A) Farmers would be able to harvest asexually producing plants in a more efficient manner because asexual reproduction has lower energy costs than sexual reproduction. 
B) Farmers who have to buy new seeds for high-demand plants would have their seed costs cut dramatically. 
C) High-demand plants,such as beans and corn,will have higher taste quality in asexually reproducing plants. 
D) Asexually reproducing plants require less water and fertilizer than sexually reproducing plants.

Question 7

Most of the noncellular fluid in ejaculated human semen is composed of

Accepted Answer

A) the secretions of the seminiferous tubules. 
B) the secretions of the bulbourethral glands. 
C) the secretions of the seminal vesicles. 
D) the secretions of the prostate gland. 
A) the secretions of the seminiferous tubules. 
B) the secretions of the bulbourethral glands. 
C) the secretions of the seminal vesicles. 
D) the secretions of the prostate gland.

Question 8

Use the information below to answer the following questions.
Normally the Y chromosome contains the SRY gene,and the X chromosomes lacks the SRY gene.The SRY gene directs the development of adult male characteristics such as a penis and testes,deeper voice,facial hair,and larger muscles.However,during meiosis,chromosomes exchange genetic material with one another through a process called homologous recombination.One outcome of homologous recombination is for an X chromosome to gain the SRY gene (referred to as X(SRY+)).Conversely,through the same process,it is possible for the Y chromosome to lose the SRY gene (referred to as Y(SRY-)).
-What biological (chromosomal)gender and adult human characteristics would a zygote having an XY(SRY-)genotype have?

Accepted Answer

A) male biological gender with male adult characteristics 
B) female biological gender with female adult characteristics 
C) male biological gender with female adult characteristics 
D) female biological gender with male adult characteristics 
A) male biological gender with male adult characteristics 
B) female biological gender with female adult characteristics 
C) male biological gender with female adult characteristics 
D) female biological gender with male adult characteristics

Question 9

Prior to ovulation,the primary steroid hormone secreted by the growing follicle is

Accepted Answer

A) luteinizing hormone (LH). 
B) follicle-stimulating hormone (FSH). 
C) inhibin. 
D) gonadotropin-releasing hormone (GnRH). 
E) estradiol. 
A) luteinizing hormone (LH). 
B) follicle-stimulating hormone (FSH). 
C) inhibin. 
D) gonadotropin-releasing hormone (GnRH). 
E) estradiol.

Question 10

During fertilization,the acrosomal contents

Accepted Answer

A) block polyspermy. 
B) help propel more sperm toward the egg. 
C) digest the protective jelly coat on the surface of the egg. 
D) nourish the mitochondria of the sperm. 
E) trigger the completion of meiosis by the sperm. 
A) block polyspermy. 
B) help propel more sperm toward the egg. 
C) digest the protective jelly coat on the surface of the egg. 
D) nourish the mitochondria of the sperm. 
E) trigger the completion of meiosis by the sperm.

Question 11

Human sperm cells first arise in the

Accepted Answer

A) prostate gland. 
B) vas deferens. 
C) seminiferous tubules. 
D) epididymis. 
E) Sertoli cells. 
A) prostate gland. 
B) vas deferens. 
C) seminiferous tubules. 
D) epididymis. 
E) Sertoli cells.

Question 12

In correct chronological order,the three phases of the human ovarian 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 13

What is the function of the epididymis in human males?

Accepted Answer

A) sperm maturation 
B) ejaculation 
C) urine storage 
D) secretion of seminal fluids 
A) sperm maturation 
B) ejaculation 
C) urine storage 
D) secretion of seminal fluids

Question 14

Uterine fibroid tumors are benign tumors that grow in the wall of the uterus.These tumors may alter the shape of the uterine cavity,thereby potentially affecting

Accepted Answer

A) the formation of the blastula. 
B) the S and M cycles of cleavage. 
C) proper implantation of the fertilized egg. 
D) frequency of polyspermy. 
A) the formation of the blastula. 
B) the S and M cycles of cleavage. 
C) proper implantation of the fertilized egg. 
D) frequency of polyspermy.

Question 15

In excreted urine,a reliable "marker" that a pregnancy has initiated is

Accepted Answer

A) progesterone. 
B) estrogen. 
C) follicle-stimulating hormone. 
D) chorionic gonadotropin. 
E) hypothalamic-releasing hormones. 
A) progesterone. 
B) estrogen. 
C) follicle-stimulating hormone. 
D) chorionic gonadotropin. 
E) hypothalamic-releasing hormones.

Question 16

Regeneration,the regrowth of lost body parts,normally follows

Accepted Answer

A) all types of asexual reproduction. 
B) all types of sexual reproduction. 
C) fission. 
D) fragmentation. 
E) parthenogenesis. 
A) all types of asexual reproduction. 
B) all types of sexual reproduction. 
C) fission. 
D) fragmentation. 
E) parthenogenesis.

Question 17

A burst of secretion of LH causes which response to occur?

Accepted Answer

A) ovulation 
B) menstruation 
C) oogenesis 
D) spermatogenesis 
A) ovulation 
B) menstruation 
C) oogenesis 
D) spermatogenesis

Question 18

What occurs 24 hours after a human zygote is formed?

Accepted Answer

A) its first cell division 
B) organogenesis 
C) cleavage 
D) gastrulation 
A) its first cell division 
B) organogenesis 
C) cleavage 
D) gastrulation

Question 19

Figure 36.2
-Sertoli cells are important for nourishing sperm.Where in Figure 36.2 are they located?

Accepted Answer

A) 1 
B) 4 
C) 9 
D) 11 
A) 1 
B) 4 
C) 9 
D) 11

Question 20

Increasing the temperature of the human scrotum by 2°C (i.e. ,near the normal body core temperature)and holding it there would

Accepted Answer

A) reduce the fertility of the man by impairing the production of gonadal steroid hormones. 
B) reduce the fertility of the man by impairing spermatogenesis. 
C) increase the fertility of the affected man by enhancing the rate of spermatogenesis. 
D) have no effect on male reproductive processes. 
A) reduce the fertility of the man by impairing the production of gonadal steroid hormones. 
B) reduce the fertility of the man by impairing spermatogenesis. 
C) increase the fertility of the affected man by enhancing the rate of spermatogenesis. 
D) have no effect on male reproductive processes.

Exam 36: Reproduction and Development

Hermaphroditism is a type of

Obesity is directly related to low testosterone levels.Why would this be of concern for a male-female couple interested in having a baby?

Inhibin is synthesized primarily by the

A contraceptive pill that continuously inhibits the release of gonadotropin-releasing hormone (GnRH)from the hypothalamus will

Contact of a sperm with signal molecules in the coat of an egg causes the sperm to undergo

Why might scientists want to figure out how to change sexually reproducing plants that are in high demand in agriculture into asexually reproducing plants?

Most of the noncellular fluid in ejaculated human semen is composed of

Prior to ovulation,the primary steroid hormone secreted by the growing follicle is

During fertilization,the acrosomal contents

Human sperm cells first arise in the

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

What is the function of the epididymis in human males?

Uterine fibroid tumors are benign tumors that grow in the wall of the uterus.These tumors may alter the shape of the uterine cavity,thereby potentially affecting

In excreted urine,a reliable "marker" that a pregnancy has initiated is

Regeneration,the regrowth of lost body parts,normally follows

A burst of secretion of LH causes which response to occur?

What occurs 24 hours after a human zygote is formed?

Figure 36.2 -Sertoli cells are important for nourishing sperm.Where in Figure 36.2 are they located?

Increasing the temperature of the human scrotum by 2°C (i.e. ,near the normal body core temperature)and holding it there would

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Development,stem Cells,and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Plant Structure and Growth

Resource Acquisition,nutrition,and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Neurons,synapses,and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Ecological Communities

Ecosystems and Energy

Conservation Biology and Global Change

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