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WorksheetsThe Cell Cycle Review
Total questions: 33
Worksheet time: 17mins
Name
Class
Date
1.
Which process in the cell cycle is responsible for the nucleus of each new cell having the same number and kinds of chromosomes as the original cell?
a)
mitosis
b)
meiosis
c)
interphase
d)
cytokinesis
2.
The cell cycle is shown in the diagram. In which stage of the cell cycle does the amount of DNA double?
a)
G1 Phase
b)
G2 Phase
c)
M Phase
d)
S Phase
3.
The cell cycle is shown in the diagram. In which stage of the cell cycle is the cell growing and carrying out its normal functions?
a)
G1 Phase
b)
G2 Phase
c)
M Phase
d)
S Phase
4.
The cell cycle is shown in the diagram. Which phase indicates the part of the cell cycle in which the cell is preparing for mitosis?
a)
G1 Phase
b)
S Phase
c)
G2 Phase
d)
M Phase
5.
What do we call chromosome pairs that contain the same genes, but may have different alleles?
a)
homologous
b)
crossed over
c)
replicated
d)
identical
6.
In which phase of mitosis do the chromosomes gather at opposite ends of the cell and start to uncoil, two new nuclear envelopes form, and the spindle fibers break down?
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
7.
In which phase of mitosis do the chromosomes line up across the center of the cell and spindle fibers attach to each centromere?
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
8.
In which phase of mitosis do the chromosomes first appear, the centrioles begin to separate to opposite ends of the cell, the spindle fibers begin to form, and the nuclear envelope breaks down?
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
9.
In which phase of mitosis do the chromatids separate into individual chromosomes and are moved apart by the spindle fibers?
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
10.
Why is meiosis important for sexual reproduction?
a)
Meiosis increases the number of body cells
b)
Meiosis reduces the number of chromosomes
c)
Meiosis reduces the chance of genetic variation
d)
Meiosis increases the chance of desirable mutations
11.
Gametes contain half the number of chromosomes that other cells in the body contain. When are gametes produced in organisms?
a)
during meiosis
b)
during mitosis
c)
during replication
d)
during transcription
12.
What is the end result of meiosis?
a)
Two haploid cells
b)
Two diploid cells
c)
Four haploid cells
d)
Four diploid cells
13.
What is the end result of mitosis?
a)
Two haploid cells
b)
Two diploid cells
c)
Four haploid cells
d)
Four diploid cells
14.
In what way do the products of meiosis differ from the products of mitosis?
a)
Meiosis results in no new cells
b)
Meiosis results in egg or sperm cells
c)
Meiosis results in two daughter cells
d)
Meiosis results in cells identical to the parent cell
15.
The diagram shows the stages of meiosis. What process results in egg cells with genetic compositions that are different than the female parents?
a)
Replication of chromosomes during interphase prior to meiosis
b)
Realignment of chromosomes during metaphase II
c)
Crossing over of chromosomes during prophase I
d)
Separation of chromosomes during anaphase I
16.
Which process most contributes to genetic variation in a population?
a)
Crossing over during meiosis
b)
Chromosome replication during mitosis
c)
Cytokinesis during cellular division
d)
Duplication of chromosomes in asexual reproduction
17.
Meiotic cell division results in gametes that produce sperm and egg cells by
a)
Reducing the daughter chromosome number by 75%
b)
Reducing the daughter chromosome number by 50%
c)
Increasing the daughter chromosome number by 50%
d)
Increasing the daughter chromosome number by 75%
18.
What must occur during the cell cycle to ensure proper division of the chromosomes?
a)
The cell must grow in size
b)
The mitochondria must divide
c)
The DNA of the cell must replicate
d)
The cell membrane must dissolve
19.
The cell cycle is the sequence of growth and division that cells go through. When does the cell cycle begin for each individual cell?
a)
At the completion of DNA replication
b)
At the completion of cytokinesis
c)
At the beginning of mitosis
d)
At the end of interphase
20.
What are centrioles?
a)
Tightly coiled DNA
b)
An organelle that develops the spindle fibers
c)
Microtubules that divide the genetic material in a cell
d)
The membrane that surrounds the DNA and makes up the nucleus
21.
What is a chromosome?
a)
Tightly coiled DNA
b)
An organelle that develops the spindle fibers
c)
Microtubules that divide the genetic material in a cell
d)
The membrane that surrounds the DNA and makes up the nucleus
22.
What is the division of the cytoplasm of a cell, that results in the formation of 2 new cells?
a)
Interphase
b)
S Phase
c)
Cytokinesis
d)
mitosis
23.
What occurs during Prophase I of meiosis to contribute to genetic variation?
a)
crossing over
b)
mutations
c)
DNA replication
d)
separating chromosomes
24.
How many cells does mitosis produce?
a)
2
b)
4
c)
23
d)
46
25.
How many cells does meiosis produce?
a)
2
b)
4
c)
23
d)
46
26.
In humans, how many chromosomes do the cells produced from mitosis contain?
a)
2
b)
4
c)
23
d)
46
27.
In humans, how many chromosomes do the cells produced from meiosis contain?
a)
2
b)
4
c)
23
d)
46
28.
The cells meiosis produces are...
a)
diploid
b)
haploid
29.
The cells mitosis produces are...
a)
diploid
b)
haploid
30.
The cells meiosis produces are...
a)
genetically unique
b)
genetically identical
31.
The cells mitosis produces are...
a)
genetically unique
b)
genetically identical
32.
What is mitosis used for?
a)
growth & repair
b)
production of gametes
33.
What is meiosis used for?
a)
growth & repair
b)
production of gametes
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