Question 1

Which of the following statements concerning the cell cycle is FALSE?

Accepted Answer

A)  The activity of Cdks increases and decreases during the cell cycle. 
B)  Cyclins fluctuate during the cell cycle. 
C)  Cdks are active only when they bind to cyclins. 
D)  The anaphase-promoting complex stimulates the separation of sister chromatids 
E)  M-Cdk inhibits mitosis. 
A)  The activity of Cdks increases and decreases during the cell cycle. 
B)  Cyclins fluctuate during the cell cycle. 
C)  Cdks are active only when they bind to cyclins. 
D)  The anaphase-promoting complex stimulates the separation of sister chromatids 
E)  M-Cdk inhibits mitosis.

Question 2

To prevent disastrous consequences, the eukaryotic cell cycle is controlled by:

Accepted Answer

A)  the mitochondria. 
B)  helper viruses. 
C)  environmental signals. 
D)  a very detailed, rigid genetic program. 
E)  a series of cell cycle checkpoints. 
A)  the mitochondria. 
B)  helper viruses. 
C)  environmental signals. 
D)  a very detailed, rigid genetic program. 
E)  a series of cell cycle checkpoints.

Question 3

A zygote would most likely be a haploid cell.
__________________

Accepted Answer

A) True 
 B)False

Question 4

During prophase, __________ is(are) compacted into visible chromosomes.

Accepted Answer

A)  chromatin 
B)  centrioles 
C)  centromeres 
D)  kinetochores 
E)  colchicine 
A)  chromatin 
B)  centrioles 
C)  centromeres 
D)  kinetochores 
E)  colchicine

Question 5

MATCHING
Match the stage of mitosis with the events that occur there.
a.metaphase
d.telophase
b.anaphase
e.prophase
c.prometaphase
-nucleoli reorganize

Accepted Answer

The answer of MATCHING
Match the stage of mitosis with the...

Question 6

Chromosomes are condensed to their greatest extent during __________ of mitosis.

Accepted Answer

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

Question 7

Sporophyte plants produce spores using:

Accepted Answer

A)  mitosis. 
B)  meiosis. 
C)  fertilization. 
D)  macrogenesis. 
E)  microgenesis. 
A)  mitosis. 
B)  meiosis. 
C)  fertilization. 
D)  macrogenesis. 
E)  microgenesis.

Question 8

The nuclear envelope fragments during the prometaphase stage.
__________________

Accepted Answer

A) True 
 B)False

Question 9

MATCHING
Match the stage of mitosis with the events that occur there.
a.metaphase
d.telophase
b.anaphase
e.prophase
c.prometaphase
-chromosomes align at the cell's midplane

Accepted Answer

The answer of MATCHING
Match the stage of mitosis with the...

Question 10

During which phase does crossing-over occur?

Accepted Answer

A)  interphase 
B)  prophase I 
C)  metaphase I 
D)  prophase II 
E)  metaphase II 
A)  interphase 
B)  prophase I 
C)  metaphase I 
D)  prophase II 
E)  metaphase II

Question 11

What is the function of nucleosomes?

Accepted Answer

A)  To prevent DNA strands from tangling. 
B)  To help DNA replicate. 
C)  To make RNA synthesis possible. 
D)  To prevent RNA from tangling with DNA during transcription. 
E)  To prevent histones from tangling. 
A)  To prevent DNA strands from tangling. 
B)  To help DNA replicate. 
C)  To make RNA synthesis possible. 
D)  To prevent RNA from tangling with DNA during transcription. 
E)  To prevent histones from tangling.

Question 12

Cell-cycle checkpoints temporarily block key events from being initiated during the cell cycle.
__________________

Accepted Answer

A) True 
 B)False

Question 13

Match the stage of meiosis with the events that occur there:
a.prophase I
e.anaphase I
b.prophase II
f.anaphase II
c.metaphase I
g.telophase I
d.metaphase II
h.telophase II
-double-stranded chromosomes line up, but not as pairs, on the cell equator

Accepted Answer

The answer of Match the stage of meiosis with the...

Question 14

If a cell is dividing by binary fission then you know that:

Accepted Answer

A)  mitosis has taken place without cytokinesis. 
B)  homologous chromosomes have already paired. 
C)  the cyclin-Cdk complex is no longer phosphorylating enzymes. 
D)  the cell cycle is out of control. 
E)  the cell is prokaryotic. 
A)  mitosis has taken place without cytokinesis. 
B)  homologous chromosomes have already paired. 
C)  the cyclin-Cdk complex is no longer phosphorylating enzymes. 
D)  the cell cycle is out of control. 
E)  the cell is prokaryotic.

Question 15

Figure 10-1
Use the figure to answer the corresponding question(s).  
-Refer to Figure 10-1.Which of the following combinations of letters accurately represents two sister chromatids?

Accepted Answer

A)  A and B 
B)  A and C 
C)  A and D 
D)  A and E 
E)  B and F 
A)  A and B 
B)  A and C 
C)  A and D 
D)  A and E 
E)  B and F

Question 16

Animal cells are stimulated to divide by mitosis by:

Accepted Answer

A)  colchicines. 
B)  magnetic fields. 
C)  mating. 
D)  growth factors. 
E)  nutrients. 
A)  colchicines. 
B)  magnetic fields. 
C)  mating. 
D)  growth factors. 
E)  nutrients.

Question 17

During prophase I, each chiasma represents:

Accepted Answer

A)  the remnants of the nuclear membrane. 
B)  the remnant of the nucleolus. 
C)  a newly formed haploid gamete. 
D)  a site of crossing-over. 
E)  the site where sister chromatids are connected. 
A)  the remnants of the nuclear membrane. 
B)  the remnant of the nucleolus. 
C)  a newly formed haploid gamete. 
D)  a site of crossing-over. 
E)  the site where sister chromatids are connected.

Question 18

Match the stage of meiosis with the events that occur there:
a.prophase I
e.anaphase I
b.prophase II
f.anaphase II
c.metaphase I
g.telophase I
d.metaphase II
h.telophase II
-crossing-over occurs

Accepted Answer

The answer of Match the stage of meiosis with the...

Question 19

Which of the following events does not occur during meiosis I?

Accepted Answer

A)  DNA exchange 
B)  pairing of homologous chromosomes 
C)  separation of sister chromatids 
D)  separation of homologous chromosomes 
E)  crossing-over between homologous chromosomes 
A)  DNA exchange 
B)  pairing of homologous chromosomes 
C)  separation of sister chromatids 
D)  separation of homologous chromosomes 
E)  crossing-over between homologous chromosomes

Question 20

In the cell cycle, DNA is replicated during the G2 phase.
__________________

Accepted Answer

A) True 
 B)False

Exam 10: Chromosomes, Mitosis, and Meiosis

Which of the following statements concerning the cell cycle is FALSE?

To prevent disastrous consequences, the eukaryotic cell cycle is controlled by:

A zygote would most likely be a haploid cell. __________________

During prophase, __________ is(are) compacted into visible chromosomes.

MATCHING Match the stage of mitosis with the events that occur there. a.metaphase d.telophase b.anaphase e.prophase c.prometaphase -nucleoli reorganize

Chromosomes are condensed to their greatest extent during __________ of mitosis.

Sporophyte plants produce spores using:

The nuclear envelope fragments during the prometaphase stage. __________________

MATCHING Match the stage of mitosis with the events that occur there. a.metaphase d.telophase b.anaphase e.prophase c.prometaphase -chromosomes align at the cell's midplane

During which phase does crossing-over occur?

What is the function of nucleosomes?

Cell-cycle checkpoints temporarily block key events from being initiated during the cell cycle. __________________

Match the stage of meiosis with the events that occur there: a.prophase I e.anaphase I b.prophase II f.anaphase II c.metaphase I g.telophase I d.metaphase II h.telophase II -double-stranded chromosomes line up, but not as pairs, on the cell equator

If a cell is dividing by binary fission then you know that:

Figure 10-1 Use the figure to answer the corresponding question(s). -Refer to Figure 10-1.Which of the following combinations of letters accurately represents two sister chromatids?

Animal cells are stimulated to divide by mitosis by:

During prophase I, each chiasma represents:

Match the stage of meiosis with the events that occur there: a.prophase I e.anaphase I b.prophase II f.anaphase II c.metaphase I g.telophase I d.metaphase II h.telophase II -crossing-over occurs

Which of the following events does not occur during meiosis I?

In the cell cycle, DNA is replicated during the G2 phase. __________________

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

In the cell cycle, DNA is replicated during the G₂ phase. __________________