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Cell Cycle, Mitosis, Stem Cells, Meiosis and Karyotypes

Total questions: 58

Worksheet time: 48mins

Name
Class
Date
1.

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

a)

G1

b)

S

c)

G2

d)

Mitosis

2.

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

3.

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

4.

Human somatic cells contain 46 chromosomes; during meiosis, haploid SEX CELLS are formed with ________ chromosomes each.

a)

46

b)

23

c)

92

d)

54

5.

How many chromosomes do human somatic cells (body cells) have?

a)

23

b)

48

c)

46

d)

92

6.

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

7.

After mitosis is complete, the new cells:

a)

are all identical

b)

are half identical and half different

c)

are all different

d)

are all stretched out

8.
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
9.
During which phase of the cell cycle does the cell spend the most time?
a)
Mitosis
b)
Cytokinesis
c)
Interphase
10.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
11.
Which phase of mitosis is shown in the picture?
a)
Interphase
b)
Metaphase
c)
Telophase
12.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Metaphase
c)
Anaphase
13.
Which phase of mitosis is shown in the picture?
a)
Prophase
b)
Telophase
c)
Metaphase
14.
What kind of cells are made in MEIOSIS?
a)
Haploid cells
b)
Diploid Cells
c)
Skin Cells
d)
Liver Cells
15.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
16.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
17.

What is cancer?

a)

A polypeptide

b)

Regular cell growth

c)

Controlled cell division

d)

Unregulated cell growth and division

18.

If a regular body cell has 50 chromosome, how many would a Haploid cell from Meiosis would have?

a)

100

b)

5

c)

50

d)

25

19.

In mitosis, if the parent cell is 2n, what are the daughter cells going to be?

a)

2n

b)

4n

c)

n

d)

6n

20.

In meiosis, if the regular cell is 2n, what are the gametes going to be?

a)

2n

b)

4n

c)

n

d)

10n

21.

What is the purpose of Mitosis?

a)

To produce gametes

b)

Sexual Reproduction

c)

To cause mutations

d)

To heal, grow and replace cells.

22.

What is the purpose of Meiosis?

a)

To heal, grow and replace cells

b)

To produce two identical daughter cells

c)

To produce cancer

d)

To produce gametes for sexual reproduction

23.

What are STEM cells?

a)

Cells that only cause cancer

b)

Cells that can specialize into any other cell

c)

Cells that divide uncontrollably and always cause tumors

d)

Cells that take cellfies

24.

What is "crossing over"?

a)

The exchange of genes between chromosomes during meiosis that results in genetic diversity.

b)

Programmed cell death (cell suicide) to prevent the spread of mutated/cancerous cells.

c)

A type of cell division that creates gametes (sperm and egg cells).

d)

A type of cell division that results in two daughter cells each having the same number of chromosomes as the parent cell.

25.

Which of the following cells undergo Meiosis ?

a)

Liver Cells

b)

Sperm Cells

c)

Brain Cells

d)

Bacteria Cells

26.
During meiosis I, what happens? 
a)
Sister chromatids are split
b)
Homologous chromosomes are split
c)
Four cells are created
d)
None of the other choices are correct
27.
During meiosis II, what happens? 
a)
Sister chromatids are split
b)
Homologous chromosomes are split
c)
Two cells are created
d)
None of the other choices are correct
28.
Each identical side of a chromosome is the 
a)
centromere
b)
chromatin
c)
centriole
d)
chromatid
29.
When DNA is in its less coiled, "relaxed," state, between cell divisions, it is called
a)
autosomes
b)
chromatid
c)
chromatin
d)
centromere
30.
Autosomes are
a)
chromosomes found in autotrophs, only
b)
chromosomes that automatically correct all errors in the DNA
c)
chromosomes that determine traits other than sex
d)
chromosomes that determine the sex of the individual
31.
The structure that holds two chromosomes together until they separate for cell division is the
a)
chromatid
b)
chromatin
c)
centromere
d)
cytoplasm
32.

A picture or image of a person's chromosomes taken through a microscope

a)

pedigree

b)

centromere

c)

karyotype

d)

none are correct

33.

Body cells are also known as

a)

prokaryotic cells

b)

somatic cells

c)

gametes

d)

sperm or egg

34.

Select the correct characteristic of the karyotype shown.

a)

Trisomy 18

b)

Monosomy 18

c)

Monosomy (of sex chromosomes)

d)

Trisomy 21

35.

Select the two correct characteristics of the karyotype shown.

a)

Male

b)

Female

c)

No chromosomal abnormalities

d)

Trisomy 18

36.

Select the two correct characteristics of the karyotype shown.

a)

Male

b)

Female

c)

No chromosomal abnormalities

d)

Trisomy 21

37.

Cytokinesis is division of the ___.

a)

nucleus

b)

DNA

c)

cytoplasm

d)

centromeres

38.
During what phase of the cell cycle does the cell grow?
a)
G1 phase
b)
S phase
c)
M phase
d)
Cytokinesis
39.
Put the following in order: G2, G1, S, mitosis, cytokinesis. 
a)
G1, G2, S, Mitosis, cytokinesis
b)
G1, S, G2, Mitosis, cytokinesis
c)
G1, G2, S, cytokinesis, mitosis
d)
G1, S, G2, cytokinesis, mitosis
40.

Bacteria reproduce asexually by a process called

a)

replication

b)

meiosis

c)

mitosis

d)

binary fission

41.

The cell formed after fertilization is called

a)

gamete

b)

sperm

c)

zygote

d)

egg

42.

Part of a chromosome is repeated

a)

Gene Mutation

b)

Point Mutation

c)

Deletion Mutation

d)

Duplication Mutation

43.

Part of a chromosome is reversed.

a)

Inversion Mutation

b)

Deletion Mutation

c)

Translocation

d)

Point Mutation

44.

Part of one chromosome is transported and attached

to a non-homologous chromosome

a)

Inversion Mutation

b)

Translocation Mutation

c)

Duplication Mutation

d)

Point Mutation

45.

Failure of homologous chromosomes

to separate during meiosis.

Results in gametes with either one extra or one missing chromosome.

a)

Translocation

b)

Nondisjunction

c)

Replication

d)

Transcription

46.
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
47.
An abnormal mass of cancer cells is called a 
a)
tumor
b)
cyst
c)
lesion
d)
polyp
48.
Metastasis is
a)
the spread of cancer from one part of the body to another.
b)
the growth of tumors in the lungs
c)
cancer of the blood cells
d)
cancer that is found in connective tissues
49.

What is the purpose the the cell cycle checkpoints?

a)

To repair damaged cells before they enter cell division

b)

To duplicate DNA in cells before they enter mitosis

c)

To allow stem cells to differentiate

d)

There are no checkpoints in the cell cycle

50.

Which process is shown in the image?

a)

crossing over

b)

independent assortment

c)

segregation

d)

mutation

51.

What is fertilization?

a)

When you put food on the plants

b)

The joining of the egg and sperm

c)

A part of mitosis

d)

The last step of meiosis

52.
Crossing over is important because....
a)
It prevents mutations from entering the gametes. 
b)
It allows for even distribution of chromosomes in the gametes.
c)
It allows for more genetic diversity of gametes.
d)
It allows for genetic uniformity of gametes. 
53.

Meiosis creates...

a)

2 genetically identical daughter cells that are diploid

b)

2 genetically identical daughter cells that are haploid

c)

4 genetically different daughter cells that are haploid

d)

4 genetically different daughter cells that are diploid

54.

What type of cells are NOT created through meiosis?

a)

Gametes

b)

Somatic Cells

c)

Sperm Cells

d)

Egg Cells

55.

One way meiosis differs from mitosis is that...

a)

It creates 2 daughter cells

b)

It creates genetically identical daughter cells

c)

It is used for growth and healing

d)

It increases genetic variation

56.

How does meiosis ensure that offspring made through sexual reproduction will have the correct number of chromosomes?

a)

It creates a back-up copy of every chromosome.

b)

It forms haploid gametes that will combine to make a diploid zygote

c)

It creates clones of the parent cell

d)

It forms diploid gametes that will then delete half their chromosomes after fertilization

57.

How does independent assortment increase genetic variation?

a)

It exchanges DNA between homologous chromosomes

b)

It creates different combinations of chromosomes in gametes

c)

It makes identical copies of every chromosome

d)

It combines the DNA of two parents

58.
How many parents does asexual reproduction involve?
a)
one 
b)
two
c)
three
d)
four

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