Question 1

Which of these statements assesses how binary fission and mitosis differ?

Accepted Answer

A)  Binary fission is a division of cytoplasm, after mitosis is complete in any cell. 
B)  Binary fission repairs cells; mitosis only replicates cells. 
C)  Binary fission is a division of whole cells in prokaryotes, and mitosis is a division of the nucleus in eukaryotes. 
D)  Binary fission is a division of the nucleoid region in prokaryotes, and mitosis is a division of the nucleus in eukaryotes. 
A)  Binary fission is a division of cytoplasm, after mitosis is complete in any cell. 
B)  Binary fission repairs cells; mitosis only replicates cells. 
C)  Binary fission is a division of whole cells in prokaryotes, and mitosis is a division of the nucleus in eukaryotes. 
D)  Binary fission is a division of the nucleoid region in prokaryotes, and mitosis is a division of the nucleus in eukaryotes.

Question 2

Which of the following is synonymous with apoptosis?

Accepted Answer

A)  programmed cell life 
B)  the loss of contact inhibition 
C)  programmed cell death 
D)  the gain of contact inhibition 
A)  programmed cell life 
B)  the loss of contact inhibition 
C)  programmed cell death 
D)  the gain of contact inhibition

Question 3

What is the usual process by which organisms reproduce asexually?

Accepted Answer

A)  mitosis 
B)  gametogenesis 
C)  meiosis 
D)  spore formation 
A)  mitosis 
B)  gametogenesis 
C)  meiosis 
D)  spore formation

Question 4

Which of the following best relates to dinoflagellates?

Accepted Answer

A)  Individual organisms are visible from space. 
B)  Individual organisms are macroscopic. 
C)  All species produce neurotoxins. 
D)  Certain species produce neurotoxins. 
A)  Individual organisms are visible from space. 
B)  Individual organisms are macroscopic. 
C)  All species produce neurotoxins. 
D)  Certain species produce neurotoxins.

Question 5

Which of the following regulates progression through the phases of the cell cycle?

Accepted Answer

A)  fluctuating concentrations of cyclin-dependent kinases 
B)  fluctuating concentrations of microtubules 
C)  fluctuating concentrations of cyclins 
D)  fluctuating concentrations of actin 
A)  fluctuating concentrations of cyclin-dependent kinases 
B)  fluctuating concentrations of microtubules 
C)  fluctuating concentrations of cyclins 
D)  fluctuating concentrations of actin

Question 6

What would happen if you add mitosis-promoting factor (MPF) to germinal cells in the skin arrested in G2?

Accepted Answer

A)  Cell division would cease. 
B)  The cells would enter prophase. 
C)  The cells would undergo cytokinesis. 
D)  Cell death would occur. 
A)  Cell division would cease. 
B)  The cells would enter prophase. 
C)  The cells would undergo cytokinesis. 
D)  Cell death would occur.

Question 7

Identify the stage of mitosis in which each activity occurs.
-Duplicated chromosomes condense into chromosomes.

Accepted Answer

A) prophase 
B) prometaphase 
C) metaphase 
D) anaphase 
E) telophase 
A) prophase 
B) prometaphase 
C) metaphase 
D) anaphase 
E) telophase

Question 8

In both plant cells and animal cells, where do the microtubles of the mitotic spindle originate?

Accepted Answer

A)  in the centromere 
B)  in the organizing centres 
C)  in the chromatid 
D)  in the centriole 
A)  in the centromere 
B)  in the organizing centres 
C)  in the chromatid 
D)  in the centriole

Question 9

Which statement characterizes cancer cells?

Accepted Answer

A)  They form tumours that remain encapsulated, growing in only one location. 
B)  They form tumours that adhere strongly to surrounding tissues. 
C)  They display uncontrolled cell division. 
D)  They display strictly regulated mitosis. 
A)  They form tumours that remain encapsulated, growing in only one location. 
B)  They form tumours that adhere strongly to surrounding tissues. 
C)  They display uncontrolled cell division. 
D)  They display strictly regulated mitosis.

Question 10

How genetically identical are cells produced by mitosis?

Accepted Answer

A)  completely genetically different 
B)  two-thirds genetically identical 
C)  half genetically identical 
D)  completely genetically identical 
A)  completely genetically different 
B)  two-thirds genetically identical 
C)  half genetically identical 
D)  completely genetically identical

Question 11

Figure 7-1   Photomicrograph by Dr. Conly L. Rieder, East Greenbush, New York
-What do we call the stage of mitosis in photo C in Figure 7-1?

Accepted Answer

A)  metaphase 
B)  prophase 
C)  interphase 
D)  anaphase 
A)  metaphase 
B)  prophase 
C)  interphase 
D)  anaphase

Question 12

Which sentence best describes the difference between plant cell division and animal cell division?

Accepted Answer

A)  In animal cells, but not plant cells, cytokinesis is accomplished by formation of a cleavage furrow. 
B)  In animal cells, replication of chromosomes occurs during interphase, while in plant cells replication occurs when the nuclear envelope disintegrates. 
C)  In plant cells, centrosomes have an important role in spindle formation, while in animal cells centrosomes do not function during cell division. 
D)  In plant cells, but not animal cells, cytokinesis is accomplished by formation of a cleavage furrow. 
A)  In animal cells, but not plant cells, cytokinesis is accomplished by formation of a cleavage furrow. 
B)  In animal cells, replication of chromosomes occurs during interphase, while in plant cells replication occurs when the nuclear envelope disintegrates. 
C)  In plant cells, centrosomes have an important role in spindle formation, while in animal cells centrosomes do not function during cell division. 
D)  In plant cells, but not animal cells, cytokinesis is accomplished by formation of a cleavage furrow.

Question 13

Which of these activities is included in the stages of cytoplasmic division?

Accepted Answer

A)  cytokinesis 
B)  condensation of DNA into chromosomes in the cytoplasm 
C)  separation of sister chromatids in the cytoplasm 
D)  alignment of chromosomes in the cytoplasm 
A)  cytokinesis 
B)  condensation of DNA into chromosomes in the cytoplasm 
C)  separation of sister chromatids in the cytoplasm 
D)  alignment of chromosomes in the cytoplasm

Exam 7: Cell Cycles

Which of these statements assesses how binary fission and mitosis differ?

Which of the following is synonymous with apoptosis?

What is the usual process by which organisms reproduce asexually?

Which of the following best relates to dinoflagellates?

Which of the following regulates progression through the phases of the cell cycle?

What would happen if you add mitosis-promoting factor (MPF) to germinal cells in the skin arrested in G2?

Identify the stage of mitosis in which each activity occurs. -Duplicated chromosomes condense into chromosomes.

In both plant cells and animal cells, where do the microtubles of the mitotic spindle originate?

Which statement characterizes cancer cells?

How genetically identical are cells produced by mitosis?

Figure 7-1 Photomicrograph by Dr. Conly L. Rieder, East Greenbush, New York -What do we call the stage of mitosis in photo C in Figure 7-1?

Which sentence best describes the difference between plant cell division and animal cell division?

Which of these activities is included in the stages of cytoplasmic division?

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

Filters

What would happen if you add mitosis-promoting factor (MPF) to germinal cells in the skin arrested in G₂?