McGraw-Hill OnlineMcGraw-Hill Higher EducationLearning Center
Student Center | Instructor Center | Information Center | Home
Enhancement Chapters
Virtual Classroom
Biology 6/e Web Links
Interactive Maps
Virtual Labs
Journal Web Links
Author's Bookshelf
eLearning Sessions
Multiple Choice
Answers to Review Questions
Feedback
Help Center


Biology, 6/e
Author Dr. George B. Johnson, Washington University
Author Dr. Peter H. Raven, Missouri Botanical Gardens & Washington University
Contributor Dr. Susan Singer, Carleton College
Contributor Dr. Jonathan Losos, Washington University
How Cells Divide

Multiple Choice Quiz

Please answer all questions



1

The G0 phase is
A)the checkpoint before G1
B)the state of most cells in an animal body
C)another name for interphase
D)a permanent state of all body cells
2

Cdks bind with ____, enabling the Cdks to function as enzymes.
A)MPF
B)cyclins
C)histones
D)p53
3

_____ from a blood clot stimulates the growth of cells in the healing process.
A)EGF
B)PDGF
C)MPF
D)NGF
4

The term "homologous chromosomes"
A)refers to replications of the same chromosome
B)is another name for sister chromatids
C)must be haploid
D)means a pair of chromosomes of the same kind, such as sex chromosomes.
5

A centromere is
A)another name for kinetochore
B)the structure to which microtubules attach
C)a constriction on a chromosome bound to a disk
D)the point on the cell to which chromosomes migrate
6

Mitosis is controlled at the _____________ checkpoint.
A)C
B)G1
C)G2
D)M
E)S
7

A cleavage furrow forms in animal cells during
A)C
B)G1
C)G2
D)M
E)S
8

In prokaryotes, just before the cell divides, the two daughter genomes are attached side by side to the
A)cell membrane
B)replication origin
C)centromeres
D)equatorial plate
E)kinetochore
9

The spindle forms in the _____________ phase.
A)C
B)G1
C)G2
D)M
E)S
10

_____________ begins when pairs of sister chromatids align in the center of the cell.
A)Anaphase
B)Interphase
C)Metaphase
D)Prophase
E)Telophase
11

Replication of the genome occurs in the _____________ phase of the cell cycle.
A)C
B)G1
C)G2
D)M
E)S
12

The condensation of the chromosome portion containing the rRNA genes causes the disappearance of the
A)nucleus
B)aster
C)centriole
D)tubulin
E)nucleolus
13

The primary growth phase of a cell is the
A)G0
B)G1
C)G2
D)M
E)S
14

A nuclear envelope forms around each set of sister chromatids in
A)anaphase
B)interphase
C)metaphase
D)prophase
E)telophase
15

_____________ triggers the division of activated T lymphocytes.
A)FGF
B)interlukin 2
C)PDGF
D)erythroprotein
E)TGF
16

The centromeres move toward the poles in _____________ .
A)anaphase
B)interphase
C)metaphase
D)prophase
E)telophase
17

In the life cycle of a human cell, each chromosome contains two chromatids by the end of the _____________ phase.
A)C
B)G1
C)G2
D)M
E)S
18

Each chromosome replicates to produce two sister chromatids in _____________ .
A)anaphase
B)interphase
C)metaphase
D)prophase
E)telophase
19

In plant cytokinesis, cellulose is laid down forming
A)a middle lamella
B)a cell plate
C)cell walls
D)a plasma membrane
E)a cleavage furrow
20

Cell growth is controlled at the _____________ checkpoint.
A)C
B)G1
C)G2
D)M
E)S
21

Microtubules grow from the poles to kinetochores of each chromatid during
A)anaphase
B)interphase
C)metaphase
D)prophase
E)telophase
22

DNA replication is controlled at the _____________ checkpoint.
A)C
B)G1
C)G2
D)M
E)S
23

Which of the following is not part of a human chromosome in any phase?
A)centriole
B)histone
C)nucleosome
D)euchromatin
E)centromere
24

Just prior to cell division, the diploid human body cell contains _____________ chromatids.
A)23
B)46
C)69
D)92
E)122
25

Preparations for genome separation are made in the _____________ phase.
A)C
B)G1
C)G2
D)M
E)S
26

A duplicated chromosome has how many chromatids?
A)one
B)two
C)three
D)four
27

Which of the following statements about mitosis is incorrect?
A)The daughter nuclei are genetically identical to the parent nucleus.
B)Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other.
C)Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize.
D)Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers.
E)The centrosomes organize the microtubules of the spindle fibers.
28

At the end of cell division, each daughter cell has the same number of chromosomes but half the amount of DNA that the parent cell had when it was in G2 of the cell cycle.
A)True
B)False
29

Which of the following terms is not related to mitosis?
A)gametes
B)chromosomes
C)DNA replication
D)somatic cells
E)All are related.
30

Which phase of mitosis is associated with chromosomes aligned at the center of the cell and centromeres divide?
A)interphase
B)prophase
C)metaphase
D)anaphase
E)telophase
31

Which phase of mitosis is associated with formation of the nuclear envelope?
A)interphase
B)prophase
C)metaphase
D)anaphase
E)telophase
32

Which phase of mitosis is associated with separation of chromatids?
A)interphase
B)prophase
C)metaphase
D)anaphase
E)telophase
33

During cell division, what structure forms as a network of protein cables?
A)spindle
B)aster
C)kinetochore
D)centromere
E)chromatid
34

Chromosome replication takes place during interphase.
A)True
B)False
35

Cytokinesis takes place during metaphase.
A)True
B)False
36

Normal human cells can go on dividing indefinitely.
A)True
B)False
37

Following telophase in animal cells, a cell plate begins to form.
A)True
B)False
38

Bacteria divide through a process called binary fission.
A)True
B)False
39

The cell cycle is controlled in most cells by
A)time, after a certain length of time the cell divides
B)a series of checkpoints
C)the completion of one phase which triggers the beginning of the next
D)cell size, when the cell reaches a certain size, it divides
E)different cells exhibit different control strategies, any of the 4 above can be found in eukaryotic organisms.
40

At the center of the cell cycle control system is Cdk, a protein that
A)is degraded after it is used
B)that is phosphorylated to become active
C)that binds to different cyclins
D)is only active during mitosis
E)manufactures growth factors
41

The p53 gene is important in cell division because it binds with Cdk to activate it.
A)True
B)False








Copyright2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.