Question 1

Which of the following events occurs during interphase of the cell cycle?

Accepted Answer

A)  condensation of the chromosomes 
B)  separation of the spindle poles 
C)  spindle formation 
D)  replication of the DNA 
A)  condensation of the chromosomes 
B)  separation of the spindle poles 
C)  spindle formation 
D)  replication of the DNA

Question 2

What two components constitute an active MPF?

Accepted Answer

A)  a growth factor and mitotic factor 
B)  ATP synthetase and a protease 
C)  cyclin and tubulin 
D)  cyclin and a cyclin-dependent kinase 
A)  a growth factor and mitotic factor 
B)  ATP synthetase and a protease 
C)  cyclin and tubulin 
D)  cyclin and a cyclin-dependent kinase

Question 3

The beginning of anaphase is indicated by which of the following processes?

Accepted Answer

A)  Loss of kinetochores from the chromatids. 
B)  Attachment of sister chromatids to each other by cohesin. 
C)  Enzymatic cleavage of cohesin. 
D)  Disappearance of the nuclear membrane. 
A)  Loss of kinetochores from the chromatids. 
B)  Attachment of sister chromatids to each other by cohesin. 
C)  Enzymatic cleavage of cohesin. 
D)  Disappearance of the nuclear membrane.

Question 4

Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related to

Accepted Answer

A)  disruption of mitotic spindle formation. 
B)  suppression of cyclin production. 
C)  myosin denaturation and inhibition of cleavage furrow formation. 
D)  inhibition of DNA synthesis. 
A)  disruption of mitotic spindle formation. 
B)  suppression of cyclin production. 
C)  myosin denaturation and inhibition of cleavage furrow formation. 
D)  inhibition of DNA synthesis.

Question 5

Use the figure to answer the question below.
 
If the cell whose nuclear material is shown in the figure continues toward completion of mitosis, which of the following events would occur next?

Accepted Answer

A)  spindle fiber formation 
B)  nuclear envelope breakdown 
C)  formation of telophase nuclei 
D)  synthesis of chromatids 
A)  spindle fiber formation 
B)  nuclear envelope breakdown 
C)  formation of telophase nuclei 
D)  synthesis of chromatids

Question 6

What would you expect to happen if MPF (maturation-promoting factor) is introduced into immature frog oocytes that are arrested in G₂?

Accepted Answer

A)  The cells would remain arrested in G₂. 
B)  The cells would enter G₀. 
C)  The cells would enter mitosis. 
D)  The cells would begin DNA synthesis. 
A)  The cells would remain arrested in G₂. 
B)  The cells would enter G₀. 
C)  The cells would enter mitosis. 
D)  The cells would begin DNA synthesis.

Exam 12: The Cell Cycle

Which of the following events occurs during interphase of the cell cycle?

What two components constitute an active MPF?

The beginning of anaphase is indicated by which of the following processes?

Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related to

Use the figure to answer the question below. If the cell whose nuclear material is shown in the figure continues toward completion of mitosis, which of the following events would occur next?

What would you expect to happen if MPF (maturation-promoting factor) is introduced into immature frog oocytes that are arrested in G₂?

Evolution, the Themes of Biology, and Scientific Inquiry

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

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

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

Vascular 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 Reproduction

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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