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cell cycle and cell division

Total questions: 118

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

During interphase, ________is replicated.

a)

ATP

b)

DNA

c)

RNA

d)

FBI

2.
What is the longest stage of the cell cycle called?
a)
Cytokinesis
b)
M phase
c)
Interphase
d)
G1 Phase
3.
Put the following actions in order: DNA replicates, cell grows, cell divides, cell prepares for mitosis. 
a)
DNA replicates, cell grows, cell prepares for mitosis, cell divides
b)
cell grows, cell prepares for mitosis, DNA replicates, cell divides
c)
cell grows, DNA replicates, cell prepares for mitosis, cell divides
d)
DNA replicates, cell prepares for mitosis, cell grows, cell divides
4.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
5.
The process by which cells become specialized is known as?
a)
stem cell research
b)
embryonic development 
c)
totipotent cell strucutre
d)
cell differentiation 
6.

Select ALL stages of Interphase

a)

G1

b)

S

c)

G2

d)

Mitosis

7.

In which stage of the cell cycle does the cell grow in size?

a)

G1

b)

S

c)

G2

d)

Mitosis

8.

In which stage of the cell cycle does the DNA replicate?

a)

G1

b)

S

c)

G2

d)

Mitosis

9.

The following describes_________________________ during mitosis. The chromatin condenses and spindle fibers form at each side of the cell. The chromosomes begin to form and nuclear membrane disappears.

a)

prophase

b)

anaphase

c)

metaphase

d)

telophase

10.

The following describes_________________________ during mitosis. The chromosomes line up along the middle of the cell and the spindle fibers attach to each chromosome at the centromere.

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

11.

When you start with 1 cell, at the end of mitosis, how many identical cells will you have?

a)

1

b)

2

c)

3

d)

4

12.
Place these cells in order of mitosis.
a)
A, B, C, D, E
b)
B, E, D, A, C
c)
C, E, A, D, B
d)
B, D, A, E, C
13.
During which phase of the cell cycle does the cell spend the most time?
a)
Mitosis
b)
Cytokinesis
c)
Interphase
14.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
15.
Which phase of mitosis is shown in the picture?
a)
Interphase
b)
Metaphase
c)
Telophase
16.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Metaphase
c)
Anaphase
17.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Telophase
c)
Metaphase
18.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
19.
What kind of cells are made in MEIOSIS?
a)
Haploid cells
b)
Diploid Cells
c)
Skin Cells
d)
Liver Cells
20.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
21.
Which of the following phrases best describes cytokenesis
a)
division of the cytoplasm
b)
division of the nucleus
c)
division of DNA
d)
division of surface area
22.
When a plant cell goes through cell division,  _____________.
a)
the 2 new nuclei are separated by the cell membrane pinching off.
b)
4 new cells are formed
c)
a cell plate forms, dividing the 2 new nuclei
d)
None of the above
23.

Substage of interphase in which the cell prepares for nuclear division and a protein that makes microtubules for cell division is synthesized

a)

Interphase

b)

G1

c)

Synthesis

d)

G2

24.

In which stage of the cell cycle do the nucleus and its contents divide?

a)

synthesis

b)

growth/gap 1

c)

mitosis

d)

growth/gap 2

25.
As a cell increases in size, the surface area to volume ratio _________________.
a)
increases
b)
decreases
c)
stays the same
26.

What might be a reason for a cell to divide?

a)

growth

b)

repair of damaged cells

c)

replacement of dying cells.

d)

All of the above

27.
The division of the nucleus is known as:
a)
Synthesis
b)
Mitosis
c)
G1
d)
G2
28.
Type of cell that forms gametes (egg and sperm)
a)
Somatic Cell
b)
Bacterial Cell
c)
Prokaryotic Cell
d)
Germ Cell
29.
Cell division involves ___________ & __________.
a)
interphase & mitosis
b)
interphase & cytokinesis
c)
mitosis & cytokinesis
d)
mitosis & meiosis
30.

Which of the following does not occur during interphase?

a)

Replication

b)

Translation

c)

Cytokinesis

d)

An increase in the number of mitochondria

31.

Which events occur during the G1 phase and S phase of the cell cycle?

a)

A

b)

B

c)

C

d)

D

32.

What happens during the G2 stage of interphase?

a)

Homologous chromosomes pair

b)

Synthesis of proteins

c)

Homologous chromosomes separate

d)

Replication of DNA

33.

What happens during the G2 stage of interphase?

a)

Homologous chromosomes pair

b)

Synthesis of proteins

c)

Homologous chromosomes separate

d)

Replication of DNA

34.

How do prokaryotic cells divide?

a)

By mitosis

b)

By meiosis

c)

By budding

d)

By binary fission

35.

During reproduction in flowering plants an embryo sac is produced, containing one haploid nucleus.

This haploid nucleus divides by mitosis three times.


What is produced?

a)

One diploid nucleus

b)

Four diploid nuclei

c)

Four haploid nuclei

d)

Eight haploid nuclei

36.

What happens in crossing over?

a)

Exchange of genetic material between homologous chromosomes

b)

Exchange of genes during metaphase of mitosis

c)

Random distribution of chromosomes during meiosis

d)

Homologous chromosomes fail to separate during meiosis

37.

What are homologous chromosomes?

a)

Identical chromosomes

b)

Non-identical chromosomes with different genes

c)

Non-identical chromosomes with the same genes in the same sequence but not necessarily the same alleles

d)

Non-identical chromosomes with the same genes in a different sequence and not necessarily the same alleles

38.

Which of the following will promote variation in a species?


I. Meiosis

II. Fertilization

III. Natural selection

a)

I only

b)

II only

c)

I and II only

d)

I, II and III

39.

A cell in the testis of a male chimpanzee (Pan troglodytes) contains 48 chromosomes. It is about to undergo meiosis.


How many molecules of DNA will be present in the nucleus of the sperm cells just after meiosis?

a)

96

b)

48

c)

24

d)

12

40.

If the haploid number of a species is 14, how many chromatids will there be in metaphase I in a dividing diploid cell?

a)

7

b)

14

c)

28

d)

56

41.

If the amount of DNA in a haploid gamete is represented by 'x', what is the net quantity of DNA in a cell from the same organism at the start of meiosis?

a)

4 x

b)

2 x

c)

x

d)

0.5 x

42.

Which of the following is/are true of the second division of meiosis?


I. sister chromatids are separated

II. crossing over of alleles occurs between non-sister

chromatids

III. it halves the chromosome number

a)

I only

b)

III only

c)

I and III only

d)

I, II and III

43.

The diagram below shows the cell of an organism going through the first division of meiosis.


How many different combinations are possible for these chromosomes in the haploid cells formed by meiosis?

a)

9

b)

8

c)

6

d)

2

44.
Structure (b) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
45.
Structure (a) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
46.
Structure (c) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
47.
Name the phase:
a)
Anaphase
b)
Telophase
c)
Metaphase
d)
Prophase
48.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
49.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
50.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
51.
Name the previous phase.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
52.

Which is Metaphase?

a)

A

b)

E

c)

C

d)

F

53.

Uncontrolled cell division which usually leads to tumors and disease is called:

a)

Metaphase

b)

Cytokinesis

c)

Cancer

d)

Diabetes

54.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
55.
What is the role of the spindle during mitosis?
a)
It divides the cell in half.
b)
It duplicates the DNA.
c)
It breaks down the nuclear membrane.
d)
It helps separate the chromosomes.
56.
What is the sex of this individual?
a)
female
b)
male
57.

Neuron cells, like the one pictured, rarely replicate. Therefore, we consider them to be in the _____ phase.

a)

G0

b)

S

c)

G1

d)

G2

58.

Sister chromatids are

a)

found only when a cell is not actively dividing

b)

formed when chromatids separated during cell division

c)

tightly linked together at the centromere

d)

made only of DNA

59.

When a eukaryotic cell is not dividing, its genetic material can be found in the form of very long thin fibers called

a)

chromatin

b)

the nucleolus

c)

chromosomes

d)

DNA

60.

The diploid chromosome compliment of human somatic cell consists of how many chromosomes?

a)

32

b)

46

c)

23

d)

64

61.

If the S-phase was eliminated from the cell cycle, the daughter cell would

a)

have half the genetic material found in the parental cell

b)

be genetically identical to the parent cell

c)

be genetically identical

d)

synthesize the missing genetic material on their own

62.

Diploid Cells are represented by

a)

2n

b)

4n

c)

n

d)

1/2 n

63.
During ___, when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. 
a)
meiosis
b)
mitosis
c)
photosynthesis
d)
respiration
64.
Sometimes the cell goes into the phase known as G0.  What word best describes this phase?
a)
Dying
b)
Resting
c)
Growing
d)
Replicating
65.
Interphases is divided into 3 subphases, G1, S, and G2.  What does the G stand for?
a)
Guarded
b)
Grounded
c)
Green
d)
Growth
66.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
67.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
68.
This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?
a)
segregation of sister chromatids
b)
condensation and segregation of alleles
c)
mutationin which the DNA content of the gene is altered
d)
crossing - over in which alleles are exchanged
69.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
70.
What phase is shown here?
a)
Anaphase II
b)
Metaphase I
c)
Anaphase I
d)
Telophase II
71.
What phase is shown here?
a)
Metaphase II
b)
Telophase I
c)
Telophase II
d)
Metaphase I
72.
What phase is shown here?
a)
Telophase II
b)
Anaphase II
c)
Metaphase I
d)
Interphase I
73.
What phase is shown here?
a)
Telophase I
b)
Metaphase II
c)
Telophase II
d)
Anaphase I
74.
What phase is this?
a)
Interphase II
b)
Prophase I
c)
Metaphase I
d)
Anaphase II
75.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
76.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
77.
Which of the following represents chromosome # during fertilization?
a)
n+n=2n
b)
n=n
c)
2n=n+n
d)
2n=2n
78.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
79.
During which phase of meiosis does the nuclear membrane reform around the chromosome?
a)
Interphase
b)
Anaphase I
c)
Telophase II
d)
Prophase I
80.
Homologous chromosomes move to opposite poles of a cell during...
a)
Anaphase II
b)
Anaphase I
c)
Metaphase I
d)
Telophase I
81.
Meiosis II is similar to mitosis in that...
a)
homologous chromosomes synapse
b)
DNA replicates before division
c)
The chromosome number is reduced
d)
Sister chromatids separate during anaphase
82.
At which stage of meiosis do chromatids separate?
a)
Metaphase I
b)
Metaphase II
c)
Anaphase I
d)
Anaphase II
83.
Which 2 cells would be more genetically similar to each other?
a)
2 gametes produced by the same person
b)
2 somatic cells produced by the same person
c)
2 eggs produced by the same woman
d)
2 sperm produced by the same man
84.

The diagram shows an animal cell undergoing meiosis at anaphase II.

How many chromosomes are there in the diploid cell of this animal?

a)

3

b)

6

c)

12

d)

24

85.

Synaptonemal complex is visible from

a)

Leptotene through diplotene

b)

Pachytene through diplotene

c)

Zygotene through pachytene

d)

Diplotene through metaphase

86.

The genome of onion has 8 chromosomes (n = 8). In a root tip cell undergoing anaphase the number of chromosomes will be -

a)

8

b)

16

c)

32

d)

Indetermine

87.

Which of the following statements about meiosis is Not true?

a)

Kinetochore of sister chromatids attach to opposit poles in Meiosis I.

b)

Kinetochore of sister chromatids attach to opposit poles in Meiosis II.

c)

Chiasma is formed in Prophase I.

d)

Homologous chromosomes are segregated in Meiosis I.

88.

Which one is correct about bivalent ?

I. Bivalent are tetrads

II. A bivalent means 4 chromatids and 2 centromere

III. One bivalent consists of 2 homologous chromosomes, each and sister chromatids

IV. Bivalents form in zygotene

a)

All

b)

Only III

c)

III and IV

d)

Only IV

89.

The number of chromosomes is reduced to half during –

a)

Anaphase of mitosis and meiosis

b)

Meiosis II

c)

Meiosis I

d)

Fertilization

90.

Synaptonemal complex is more conspicious at

a)

Zygotene

b)

Pachytene

c)

Diplotene

d)

Leptotene

91.

During meiosis, the sister chromatids separate during –

a)

Anaphase II

b)

Anaphase I

c)

The S phase

d)

Synapsis

92.

During meiosis I in human, one of the daughter cells receives –

a)

Only maternal chromosomes

b)

A mixture of maternal and paternal chromosomes

c)

The same number of chromosomes as a diploid cell

d)

A sister chromatid from each chromosome

93.

At what phase of meiosis are homologous chromosomes separated?

a)

Anaphase II

b)

Anaphase I

c)

Prophase I

d)

Prophase II

94.

Which statement is/are NOT true about cytokinesis in animal?


I Cleavage occurs through furrowing

II A shallow groove is formed in the cell surface

III A contractile ring forms on the ring contract

a)

I only

b)

I and II only

c)

II and III only

d)

I, II and III

95.

Which statement is/are NOT true about cytokinesis in animal?


I Cleavage occurs through furrowing

II A shallow groove is formed in the cell surface

III A contractile ring forms on the ring contract

a)

I only

b)

I and II only

c)

II and III only

d)

I, II and III

96.

Cytokinesis usually, but not always, follows mitosis. If a cell completed mitosis but not cytokinesis, the result would be a cell with

a)

a single large nucleus

b)

two abnormally small nuclei

c)

two normal size nuclei

d)

two nuclei but with half amount of DNA

97.

Synapsis could be defined as

a)

region where crossing over has occurred in prophase 1 between homologous nonsister chromatids

b)

the reciprocal exchange of genetic material between nonsister chromatids during prophase I of meiosis.

c)

the pairing and physical connection of one duplicated chromosome to its homolog during prophase I of meiosis

d)

the two chromosomes having the same length, centromere position and staining pattern.

98.

Crossing over is one of the most important events in meiosis because

a)

it produces new recombination of alleles on homologous chromosomes

b)

homologous chromosomes must be separated into different daughter cells

c)

homologous chromatids must be separated into different daughter cells

d)

the number of chromosomes to each daughter cell must be halved

99.

Which of the following event does not occur in anaphase II?

a)

Centromeres are split

b)

Homologous chromosome is separate

c)

Spindle fibres shortened

d)

Sister chromatids are moved to the opposite poles of the cell

100.

If your cell has 48 chromatids, what will be the number of a chromosome at each pole after anaphase I?

a)

12

b)

24

c)

36

d)

48

101.

Which statement correctly describes homologous chromosomes?

a)

They are formed during meiosis

b)

They are held together by centromeres

c)

They are not identical

d)

They carry the same gene loci

102.

Prophase I of meiosis I divided into 5 distinctive sub-phases. Arrange this sub-phases in correct order

a)

Leptotene – zygotene – pachytene – diplotene – diakinesis

b)

Leptotene – diplotene – zygotene – pachytene – diakinesis

c)

Diplotene - leptotene – zygotene – pachytene – diakinesis

d)

Diplotene – pachytene – zygotene – diakinesis – leptone

103.

A cluster of four chromatids of homologous chromosomes formed by synapsis is called

a)

Crossing over

b)

Bivalent

c)

Tetrad

d)

Chiasmata

104.

FIGURE shows a cell undergoing meiosis. What is this stage of meiosis?

a)

Anaphase I

b)

Prophase I

c)

Anaphase II

d)

Telophase II

105.

During gamete formation, the enzyme recombinase participates during

a)

a) Metaphase I

b)

b) Anaphase II

c)

c) Prophase I

d)

d) Prophase II

106.

5. The complex formed by a pair of synapsed homologous chromosomes is called

a)

a) Bivalent

b)

b) Axoneme

c)

c) Equatorial plate

d)

d) Kinetochore

107.

6. During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

a)

a) G0 and G1

b)

b) G1 and S

c)

c) Only G2

d)

d) G2 and M

108.

8. A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has

a)

a) Twice the number of chromosomes and four times the amount of DNA

b)

b) Four times the number of chromosomes and twice the amount of DNA

c)

c) Twice the number of chromosomes and twice the amount of DNA

d)

d) Same number of chromosomes but twice the amount of DNA

109.

9. Select the correct option.

Column I Column II

A. Synapsis aligns homologous chromosomes (i) Anaphase II

B. Synthesis of RNA and protein (ii) Zygotene

C. Action of enzyme recombinase (iii) G2 phase

D. Centromeres do not separate but chromatid (iv) Anaphase I

Move towards opposite poles (v) Pachytene

a)

a) A-(i), B-(ii), C-(v), D-(iv)

b)

b) A-(ii), B-(iii), C-(iv), D-(v)

c)

c)A-(ii), B-(i), C-(iii), D-(iv)

d)

d) A-(ii), B-(iii), C-(v), D-(iv)

110.

10.Arrange the following events of meiosis in correct sequen

(i) Crossing ove

(ii) Synapsis

(iii) Terminalisation of chiasmata

(iv) Disappearance of nucleolus

a)

a) (i), (ii), (iii),(iv)

b)

b) (ii), (iii),(iv), (i)

c)

c) (ii), (i), (iv), (iii)

d)

d) (ii), (i), (iii), (iv)

111.
In which stage the cell is said to have exited cell cycle?
a)
M Phase
b)
G0 Phase
c)
G1 Phase
d)
G2 Phase
112.
A haploid cell (having n number of chromosomes) undergoes mitosis. What will be the number of chromosomes in this haploid cell at the end of mitosis?
a)
n
b)
2n
c)
4n
d)
½ n
113.
A diploid cell after undergoing mitotic cell division fails to undergo cytokinesis. What will be its ploidy and the amount of DNA content respectively?
a)
Diploid and n
b)
Diploid and 2n
c)
Tetraploid and 2n
d)
Tetraploid and 4n
114.

What will be the number of chromosomes and amount of DNA respectively in a diploid cell undergoing meiotic division after completion of meiosis I?

a)

n and 2C

b)

n and 2C

c)

2n and 2C

d)

2n and 4C

115.
What will be the number of chromosomes and amount of DNA respectively in a diploid cell undergoing meiotic division after completion of meiosis?
a)
n and n
b)
n and 2n
c)
2n and 2n
d)
2n and 4n
116.
Which event in meiosis increases the variability in the gametes formed?
a)
Formation of synapsis
b)
Pairing of homologous chromosomes
c)
Separation of homologous pair of chromosomes
d)
Crossing over of parts of non-sister chromatids of a pair of homologous chromosomes
117.
What will be the number of chromosomes present within a diploid cell if it fails to undergo cytokinesis after meiosis II?
a)
n
b)
2n
c)
n + n
d)
2n + n
118.

A somatic cell that has just completed the S phase of its cell cycle, as compared to a gamete of the same species, has

a)

twice the number of chromosomes and twice the amount of DNA

b)

the same number of chromosomes but twice the amount of DNA

c)

twice the number of chromosomes and four times the amount of DNA

d)

four times the number of chromosomes and twice the amount of DNA

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