Question 1

Viruses can have either RNA or DNA for their genetic material.

Accepted Answer

A) True 
 B)False

Question 2

Embryonic stem cells are different from primary cell cultures or permanent cell lines derived from a tissue in that they are capable of

Accepted Answer

A)  generating many cell types. 
B)  growing and dividing. 
C)  synthesizing their own DNA. 
D)  transporting nutrients across their plasma membrane. 
A)  generating many cell types. 
B)  growing and dividing. 
C)  synthesizing their own DNA. 
D)  transporting nutrients across their plasma membrane.

Question 3

E. coli is a useful model system for molecular biology studies because

Accepted Answer

A)  it has a small genome. 
B)  it reproduces rapidly. 
C)  mutants can easily be isolated from culture dishes. 
D)  All of the above 
A)  it has a small genome. 
B)  it reproduces rapidly. 
C)  mutants can easily be isolated from culture dishes. 
D)  All of the above

Question 4

Why is RNA thought to have arisen on Earth prior to proteins and DNA?

Accepted Answer

Unlike proteins, RNA molecules contain t

Question 5

Model systems serve as simplified examples in which the properties and development of cells can be examined easily. For mammals, a common model system is _______, and _______ is a common model for plants.

Accepted Answer

mice; Arab

Question 6

Higher plants and higher animals are similar in that they contain about the same number of different cell types.

Accepted Answer

A) True 
 B)False

Question 7

The simplicity and clarity of Caenorhabditis elegans allowed researchers to

Accepted Answer

A)  trace the developmental lineages of all cells in the adult. 
B)  identify the genes involved in differentiation of each cell type. 
C)  observe the process of fertilization better than had been possible in the past. 
D)  follow the process by which cell aggregation forms a multicellular organism. 
A)  trace the developmental lineages of all cells in the adult. 
B)  identify the genes involved in differentiation of each cell type. 
C)  observe the process of fertilization better than had been possible in the past. 
D)  follow the process by which cell aggregation forms a multicellular organism.

Question 8

Electron microscopes have a resolution advantage over light microscopes because

Accepted Answer

A)  electron microscopes allow the viewer to examine living cells. 
B)  electron microscope lenses have a larger numerical aperture. 
C)  electron microscopes are easier to use. 
D)  the wavelength of electrons is shorter than that of light. 
A)  electron microscopes allow the viewer to examine living cells. 
B)  electron microscope lenses have a larger numerical aperture. 
C)  electron microscopes are easier to use. 
D)  the wavelength of electrons is shorter than that of light.

Question 9

Synthesis of DNA from RNA was first observed using retroviruses.

Accepted Answer

A) True 
 B)False

Question 10

In the _______ microscope, imaging is restricted to a single focal plane by the use of an aperture pinhole to reject out of focus light; whereas in the _______ microscope, the same outcome is achieved through the use of light wavelengths such that excitation of the fluorescent dye requires the simultaneous absorption of two or more photons.

Accepted Answer

confocal;

Question 11

Photosynthesis first evolved in the green algae.

Accepted Answer

A) True 
 B)False

Question 12

The Rous sarcoma virus (RSV) is

Accepted Answer

A)  a strain of virus that causes neurodegeneration in chickens. 
B)  a virus which has been useful in the development of human gene therapy. 
C)  the causative agent of the disease chicken pox. 
D)  the first cancer causing animal virus to be identified. 
A)  a strain of virus that causes neurodegeneration in chickens. 
B)  a virus which has been useful in the development of human gene therapy. 
C)  the causative agent of the disease chicken pox. 
D)  the first cancer causing animal virus to be identified.

Question 13

Which of the following is a colonial organism closely related to the evolutionary precursors of present-day plants?

Accepted Answer

A)  Paramecium 
B)  Dictyostelium discoideum 
C)  Volvox 
D)  Arabidopsis thaliana 
A)  Paramecium 
B)  Dictyostelium discoideum 
C)  Volvox 
D)  Arabidopsis thaliana

Question 14

The formation of a phospholipid bilayer membrane around a set of macromolecules was an important step in the origin and early evolution of life. What two advantages of such a system are thought to have allowed the first cells to grow and evolve?

Accepted Answer

(1) The membrane forms a barri

Question 15

Drosophila melanogaster was an organism of choice for the study of

Accepted Answer

A)  the process of fertilization. 
B)  the process of cell aggregation to form a multicellular organism. 
C)  the process of development. 
D)  mammalian genetics. 
A)  the process of fertilization. 
B)  the process of cell aggregation to form a multicellular organism. 
C)  the process of development. 
D)  mammalian genetics.

Question 16

A single somatic animal cell in culture is capable of forming an entire animal.

Accepted Answer

A) True 
 B)False

Question 17

Studies of certain viruses have led to the discovery that DNA can be synthesized from an RNA template. What are these viruses called?

Accepted Answer

The answer of Studies of certain viruses have led to...

Question 18

Caenorhabditis elegans is an important organism for the study of plant development.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is the most commonly used mammal for genetic studies?

Accepted Answer

A)  Human 
B)  Xenopus laevis 
C)  Mouse 
D)  Cat 
A)  Human 
B)  Xenopus laevis 
C)  Mouse 
D)  Cat

Question 20

Organelles such as mitochondria and chloroplasts are thought to have originated in eukaryotic cells via a process called

Accepted Answer

A)  phagocytosis. 
B)  endosymbiosis. 
C)  endocytosis. 
D)  exocytosis. 
A)  phagocytosis. 
B)  endosymbiosis. 
C)  endocytosis. 
D)  exocytosis.

Viruses can have either RNA or DNA for their genetic material.

Embryonic stem cells are different from primary cell cultures or permanent cell lines derived from a tissue in that they are capable of

E. coli is a useful model system for molecular biology studies because

Why is RNA thought to have arisen on Earth prior to proteins and DNA?

Model systems serve as simplified examples in which the properties and development of cells can be examined easily. For mammals, a common model system is _, and _ is a common model for plants.

Higher plants and higher animals are similar in that they contain about the same number of different cell types.

The simplicity and clarity of Caenorhabditis elegans allowed researchers to

Electron microscopes have a resolution advantage over light microscopes because

Synthesis of DNA from RNA was first observed using retroviruses.

Photosynthesis first evolved in the green algae.

The Rous sarcoma virus (RSV) is

Which of the following is a colonial organism closely related to the evolutionary precursors of present-day plants?

The formation of a phospholipid bilayer membrane around a set of macromolecules was an important step in the origin and early evolution of life. What two advantages of such a system are thought to have allowed the first cells to grow and evolve?

Drosophila melanogaster was an organism of choice for the study of

A single somatic animal cell in culture is capable of forming an entire animal.

Studies of certain viruses have led to the discovery that DNA can be synthesized from an RNA template. What are these viruses called?

Caenorhabditis elegans is an important organism for the study of plant development.

Which of the following is the most commonly used mammal for genetic studies?

Organelles such as mitochondria and chloroplasts are thought to have originated in eukaryotic cells via a process called

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

Exam 1: An Overview of Cells and Cell Research

Viruses can have either RNA or DNA for their genetic material.

Embryonic stem cells are different from primary cell cultures or permanent cell lines derived from a tissue in that they are capable of

E. coli is a useful model system for molecular biology studies because

Why is RNA thought to have arisen on Earth prior to proteins and DNA?

Model systems serve as simplified examples in which the properties and development of cells can be examined easily. For mammals, a common model system is _______, and _______ is a common model for plants.

Higher plants and higher animals are similar in that they contain about the same number of different cell types.

The simplicity and clarity of Caenorhabditis elegans allowed researchers to

Electron microscopes have a resolution advantage over light microscopes because

Synthesis of DNA from RNA was first observed using retroviruses.

Photosynthesis first evolved in the green algae.

The Rous sarcoma virus (RSV) is

Which of the following is a colonial organism closely related to the evolutionary precursors of present-day plants?

The formation of a phospholipid bilayer membrane around a set of macromolecules was an important step in the origin and early evolution of life. What two advantages of such a system are thought to have allowed the first cells to grow and evolve?

Drosophila melanogaster was an organism of choice for the study of

A single somatic animal cell in culture is capable of forming an entire animal.

Studies of certain viruses have led to the discovery that DNA can be synthesized from an RNA template. What are these viruses called?

Caenorhabditis elegans is an important organism for the study of plant development.

Which of the following is the most commonly used mammal for genetic studies?

Organelles such as mitochondria and chloroplasts are thought to have originated in eukaryotic cells via a process called

Molecules and Membranes

Bioenergetics and Metabolism

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

Model systems serve as simplified examples in which the properties and development of cells can be examined easily. For mammals, a common model system is _, and _ is a common model for plants.