WorksheetsCell Cycle, Mitosis & Meiosis Review
Total questions: 35
Worksheet time: 18mins
What is the role of the spindle fibers during mitosis?
They helps separate the chromosomes
They performs DNA synthesis
They breaks down the nuclear membrane
They duplicates DNA
They form the cell membrane.
Which pair matches the phase of the cell cycle to the correct cellular process that occurs during that phase?
S phase --Cell division
M phase-- Cell growth
G1 phase --DNA replication
G2 phase--preparation for Mitosis
Which pair of numbers shows the number of cells before and after meiosis II?
4 cells before and 4 cells after
1 cell before and 2 cells after
1 cell before and 4 cells after
2 cells before and 4 cells after
Asiah knows that chromosomes behave differently in meiosis and mitosis. What do chromosomes do in meiosis but NOT in mitosis?
Chromosomes condense or shorten up before cell division begins
Each chromosomes makes a copy
Chromosomes line up in the middle of the cell
The homologous chromosomes form pairs
The picture depicts what stage of meiosis?
Metaphase I
Metaphase II
Prophase I
Anaphase I
Which phases of the cell cycle represent interphase?
Phases S, G2 & M
Phases M, G1 & S
Phases G1, S & G2
Phases G1 & G2
In mitosis, during which phase do chromosomes first become visible?
prophase
interphase
telophase
metaphase
During human reproduction, two sex cells must combine to form a fertilized egg knows as a zygote. Which of the following statements correctly describes the genetic makeup of the sperm cell produced by the human male?
Each cell has pairs of chromosomes & the cells are usually genetically different
Each cell has half the normal number of chromosomes & the cells are usually genetically identical
Each cell has pairs of chromosomes & the cells are usually genetically identical
Each cell has half the normal number of chromosomes & the cells are usually genetically different
Which one of the following statements best describes the relationship between tumor suppressor proteins (TSP) and cancer?
When activated, TSPs will cause uncontrolled cell division
Mutation to a TSP will cause a cell to undergo apoptosis
Mutation of a TSP can cause cancer
TSPs usually become inactivated during the teenage years.
The illustration represents a summary of both meiosis and mitosis. Compare and contrast these two types of cell division, Note the cells labeled with letters A & B in the illustration. What is the chromosome number associated with each type of cell.
Cell A is 2N; Cell B is 2N
Cell A is 1N; Cell B is 2N
Cell A is 1N; Cell B is 1N
Cell A is 2N; Cell B is 1N
Chromosomes are___.
genetic material
in living organisms
condensed chromatin
all of the choices
Why do cells go through mitosis?
To replace damaged cells.
To synthesize DNA.
To duplicate their chromosomes.
To produce energy for the cell.
Which of the following statements is true?
Brothers and sisters frequently have exactly the same combination of chromosomes.
Each human somatic (body) cell contains of each type of chromosome.
Each human sex cell contains two of each type of chromosomes.
When sex cells are produced, paired homologous chromosomes separate so that each gamete (sex cell) contains on lone of the pair of chromosomes for each trait.
The cell in the diagram is undergoing the cell cycle. Which stage of mitosis will FOLLOW this stage?
Telophase
Prophase
Anaphase
Metaphase
Some cancer drugs target cytokinesis. What would happen if the cell cycle proceeded normally, excepts that cytokinesis did not occur?
The separation of chromosomes couldn't occur.
Cells without nuclei would be formed.
A large cell with multiple nuclei would result.
The resulting cells would get smaller and smaller.
A student was completing a comparison chart of the processes of mitosis and meiosis. She left the last row empty. What should to in the last row to complete the chart?
diploid, diploid
diploid, haploid
haploid, haploid
haploid, diploid
DNA that is loosely compacted within the nucleus is known as chromatin. In order for the DNA to be properly split between new daughter cells during cellular reproduction, it must first be tightly packaged or condensed which occurs during the first phase of mitosis. The structures labeled A and B in the diagram are called ___.
centromeres
spindles
centrioles
sister chromatids
Which of the following best describes the cells that result from the process of meiosis in mammals?
They can be used to repair injuries.
They are genetically different from the parent cell.
They are identical to each other.
They are diploid.
Which statement is true of both mitosis and meiosis?
Both occur only in reproductive cells.
DNA replication occurs before the division of the nucleus.
The number of chromosomes is reduced by half.
Both are involved in asexual reproduction
______ chromosomes exchange information during _____ which adds to genetic diversity.
Sex, metaphase I
Homologous, prophase I
Sex, interphase
Homologous, interphase
A biologist counted 2,500 cells from an embryo on a microscope slide and recorded the following data. If these cells had been dividing randomly, it could be concluded that ____.
interphase is the longest stage of the cell cycle
the duration of anaphase is approximately one-half of telophase
metaphase is the shortest stage of the cell cycle
prophase is approximately three times as long as telophase
At what point in the cell cycle does DNA replication occur and why does it occur?
occurs during cell division to ensure that the DNA will fit into the resulting cells
occurs before a cell divides to provide each of the two resulting cells with a complete set of DNA instructions
occurs after a cell divides to provide each of the two resulting cells with a complete set of DNA instructions
occurs before a cell divides to ensure that the DNA will fit into the resulting cells.
The diagram shows a cell during the anaphase stage of mitosis. Justin's teacher showed him this slide of a stage of mitosis. He noticed the slide contains two homologous pairs of chromosomes. How would this diagram be different if it showed anaphase I of meiosis instead of anaphase of mitosis?
The chromosomes would look the same as in mitosis.
Each chromosome would still have two chromatids.
You would be able to see DNA in the chromosomes during meiosis.
Homologous chromosomes would be moving together to the same side of the cell.
Which phase is shown in this illustration?
Metaphase
Anaphase
Prophase
Telophase
The process where the cytoplasm divides is called ___.
Anaphase
Meiosis
Interphase
Cytokinesis
An organism has 32 chromosomes. How many chromosomes would be found in its gametes after meiosis?
16
32
64
8
Which of the following occurs during interphase?
cell growth and duplication of the chromosomes
a reduction in the size of the nuclear membrane
separation of newly formed DNA to opposite ends of the cell
cytokinesis
Strawberries can reproduce by means of runners, which are stems that grow horizontally along the ground. At the region of the runner that touches the ground, a new plant develops. The new plant is genetically identical to the parent because ___.
it was produced sexually
nuclei traveled to the new plant through the runner to fertilize it
there were no other strawberry plants in the area to provide fertilization
it was produced asexually
Which of the following is true?
Cancer can be spread person to person through the air.
Oncogenes can cause uncontrolled cell growth.
Cancer cannot spread to other parts of the body.
Mutations in DNA always cause cancer.
At the end of meiosis I, the resulting two cells are ____.
genetically different
genetically identical
prepared to enter interphase so the chromosomes can be replicated
identical in all ways
Cancer, also called malignancy, is an abnormal growth of cells. There are more than 100 types of cancer, including breast cancer, skin cancer, lung cancer, colon cancer, prostate cancer, and lymphoma. Symptoms vary depending on the type. Cancer treatment may include
chemotherapy, radiation, and/or surgery. Based on your knowledge of cancer, which of the cells depicted in the line graph in the figure are most likely cancerous?
A
B
C
D
Which of the following correctly compares Mitosis and Meiosis?
Homologous chromosomes pair up during meiosis and not mitosis
Crossing over occurs in Prophase of Mitosis but not Meiosis
Mitosis produces 4 identical cells where Meiosis produces 2 genetically unique cells
Mitosis produces 4 genetically unique cells where Meiosis produces 2 identical cells
How does a sex cell differ from a body cell?
A sex cell does not contain chromosomes
A sex cell contains homologous chromosomes
A sex cell has the same number of chromosomes as a body cell
A sex cell has half the amount of genetic material as a body cell
Why do cells go through mitosis?
To replace damaged cells
To synthesize DNA
To duplicate their chromosomes
To produce energy for the cell
This diagram shows crossing over that occurs during meiosis. What is the result of crossing over?
Greater genetic diversity
Increased ability to produce ATP
Greater likelihood for cancer to develop
There really is no effect from crossing over
