Question 1

The term ____________means that stem cells retain the capacity to divide, in some cases for the entire life of the organism.

Accepted Answer

self-renewal

Question 2

What causes the rhythmic change in cyclin concentration in the cell cycle?

Accepted Answer

A)  The changing ratio of cytoplasm to genome 
B)  The cascade of increased production once the protein is phosphorylated by Cdk 
C)  An increase in production of a Cdk once the restriction point is passed 
D)  Its destruction by an enzyme phosphorylated by the cyclin-Cdk complex 
E)  The binding of PDGF to receptors on the cell surface 
A)  The changing ratio of cytoplasm to genome 
B)  The cascade of increased production once the protein is phosphorylated by Cdk 
C)  An increase in production of a Cdk once the restriction point is passed 
D)  Its destruction by an enzyme phosphorylated by the cyclin-Cdk complex 
E)  The binding of PDGF to receptors on the cell surface D

Question 3

All of the following play a role in the development of cancer EXCEPT

Accepted Answer

A)  a large supply of Cdks stimulating cell division. 
B)  mutations. 
C)  inhibition of Cdk and blocking of DNA replication. 
D)  uncontrolled cell division. 
A)  a large supply of Cdks stimulating cell division. 
B)  mutations. 
C)  inhibition of Cdk and blocking of DNA replication. 
D)  uncontrolled cell division. C

Question 4

During development, after an injury, or to compensate for normal wear and tear, many cells in the body release hormone-like molecules called ____________.

Accepted Answer

The answer of During development, after an injury, or to...

Question 5

In which of the stages below does each chromosome consist of two DNA molecules? (I. metaphase,

Accepted Answer

A)  I, III, and IV 
B)  I, II, and III 
C)  III and IV 
D)  I, II, III, and IV 
E)  I and III 
A)  I, III, and IV 
B)  I, II, and III 
C)  III and IV 
D)  I, II, III, and IV 
E)  I and III

Question 6

A bacterial cell splits into two new cells by a process called

Accepted Answer

A)  forming a cell furrow. 
B)  duplication. 
C)  mitosis. 
D)  prokaryotic fission. 
E)  forming a cell plate. 
A)  forming a cell furrow. 
B)  duplication. 
C)  mitosis. 
D)  prokaryotic fission. 
E)  forming a cell plate.

Question 7

A cell with 10 chromosomes undergoes mitosis and cell division. How many daughter cells are produced, and what number of chromosomes do they have?

Accepted Answer

A)  4 daughter cells, 20 chromosomes each 
B)  2 daughter cells, 5 chromosomes each 
C)  1 daughter cell, 10 chromosomes each 
D)  2 daughter cells, 10 chromosomes each 
A)  4 daughter cells, 20 chromosomes each 
B)  2 daughter cells, 5 chromosomes each 
C)  1 daughter cell, 10 chromosomes each 
D)  2 daughter cells, 10 chromosomes each

Question 8

Cdks are activated only when they bind to

Accepted Answer

A)  cyclin. 
B)  chromatids. 
C)  cytosine. 
D)  centrioles. 
A)  cyclin. 
B)  chromatids. 
C)  cytosine. 
D)  centrioles.

Question 9

Which of the following is TRUE of cell division?

Accepted Answer

A)  Each daughter cell receives half of the cytoplasm from the parent cell. 
B)  Each daughter cell receives one-third of the hereditary information in the parent cell. 
C)  The hereditary information is DNA in the parent cell and RNA in the daughter cells. 
D)  Three daughter cells are produced from one parent cell. 
A)  Each daughter cell receives half of the cytoplasm from the parent cell. 
B)  Each daughter cell receives one-third of the hereditary information in the parent cell. 
C)  The hereditary information is DNA in the parent cell and RNA in the daughter cells. 
D)  Three daughter cells are produced from one parent cell.

Question 10

A phosphate group binds to what molecule to create the ʺbackboneʺ of the DNA molecule?

Accepted Answer

A)  Deoxyribose 
B)  Adenine 
C)  Ribose 
D)  Other phosphate molecules 
A)  Deoxyribose 
B)  Adenine 
C)  Ribose 
D)  Other phosphate molecules

Question 11

Most prokaryotes reproduce via a form of asexual reproduction called prokaryotic fission.

Accepted Answer

A) True 
 B)False

Question 12

In prokaryotes, the daughter cells produced by prokaryotic fission

Accepted Answer

A)  are, with the exception of random mutations, genetically identical to the parent cell. 
B)  can reproduce either by prokaryotic fission or by the production of gametes. 
C)  contain half the DNA of the original parent cell. 
D)  cannot replicate themselves. 
A)  are, with the exception of random mutations, genetically identical to the parent cell. 
B)  can reproduce either by prokaryotic fission or by the production of gametes. 
C)  contain half the DNA of the original parent cell. 
D)  cannot replicate themselves.

Question 13

How do prokaryotic and eukaryotic chromosomes differ?

Accepted Answer

A)  Prokaryotic chromosomes are not contained in a membrane-bound organelle. 
B)  Prokaryotic chromosomes are not made from nucleotides. 
C)  Genetic information is stored as DNA in eukaryotic cells and as proteins in prokaryotic cells. 
D)  Eukaryotic chromosomes occur singly, and prokaryotic chromosomes occur as pairs. 
A)  Prokaryotic chromosomes are not contained in a membrane-bound organelle. 
B)  Prokaryotic chromosomes are not made from nucleotides. 
C)  Genetic information is stored as DNA in eukaryotic cells and as proteins in prokaryotic cells. 
D)  Eukaryotic chromosomes occur singly, and prokaryotic chromosomes occur as pairs.

Question 14

Which of the following is the correct sequence of stages in mitotic cell division?

Accepted Answer

A)  Prophase → metaphase → anaphase → telophase 
B)  Metaphase → prophase → anaphase → telophase 
C)  Telophase → anaphase → prophase → metaphase 
D)  Anaphase → telophase → prophase → metaphase 
A)  Prophase → metaphase → anaphase → telophase 
B)  Metaphase → prophase → anaphase → telophase 
C)  Telophase → anaphase → prophase → metaphase 
D)  Anaphase → telophase → prophase → metaphase

Question 15

Cytokinesis takes place during metaphase.

Accepted Answer

A) True 
 B)False

Question 16

Mitosis is controlled at the ____________checkpoint.

Accepted Answer

A)  G2 
B)  S 
C)  M 
D)  C 
E)  G1 
A)  G2 
B)  S 
C)  M 
D)  C 
E)  G1

Question 17

Cells with two of each kind of chromosome are described by the term

Accepted Answer

A)  diploid. 
B)  haploid. 
C)  triploid. 
D)  polyploid. 
E)  tetraploid. 
A)  diploid. 
B)  haploid. 
C)  triploid. 
D)  polyploid. 
E)  tetraploid.

Question 18

In prophase, the nuclear membrane disappears.

Accepted Answer

A) True 
 B)False

Question 19

In prokaryotes, the DNA molecule is

Accepted Answer

A)  single-stranded. 
B)  circular. 
C)  made of sugars and lipids. 
D)  more than 1.8 meters (6 feet) long when uncoiled. 
A)  single-stranded. 
B)  circular. 
C)  made of sugars and lipids. 
D)  more than 1.8 meters (6 feet) long when uncoiled.

Question 20

All of the following may be found in a DNA nucleotide EXCEPT

Accepted Answer

A)  phospholipid. 
B)  thymine. 
C)  adenine. 
D)  deoxyribose. 
A)  phospholipid. 
B)  thymine. 
C)  adenine. 
D)  deoxyribose.

Exam 9: Cellular Reproduction

The term ____________means that stem cells retain the capacity to divide, in some cases for the entire life of the organism.

What causes the rhythmic change in cyclin concentration in the cell cycle?

All of the following play a role in the development of cancer EXCEPT

During development, after an injury, or to compensate for normal wear and tear, many cells in the body release hormone-like molecules called ____________.

In which of the stages below does each chromosome consist of two DNA molecules? (I. metaphase,

A bacterial cell splits into two new cells by a process called

A cell with 10 chromosomes undergoes mitosis and cell division. How many daughter cells are produced, and what number of chromosomes do they have?

Cdks are activated only when they bind to

Which of the following is TRUE of cell division?

A phosphate group binds to what molecule to create the ʺbackboneʺ of the DNA molecule?

Most prokaryotes reproduce via a form of asexual reproduction called prokaryotic fission.

In prokaryotes, the daughter cells produced by prokaryotic fission

How do prokaryotic and eukaryotic chromosomes differ?

Which of the following is the correct sequence of stages in mitotic cell division?

Cytokinesis takes place during metaphase.

Mitosis is controlled at the ____________checkpoint.

Cells with two of each kind of chromosome are described by the term

In prophase, the nuclear membrane disappears.

In prokaryotes, the DNA molecule is

All of the following may be found in a DNA nucleotide EXCEPT

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

DNA: The Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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