Exam (elaborations)

CELL DIVISION

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CELL DIVISION

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CELL DIVISION

100% What is the primary purpose of cell division? The primary purpose of cell division is growth, repair, and reproduction. Which phase of the cell cycle is the longest? Interphase During which phase of mitosis do the chromosomes align at the center of the cell? Metaphase Which structure he...

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Uploaded on March 3, 2025
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Institution CELL DIVISION
Course CELL DIVISION

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CELL DIVISION QUESTIONS AND ANSWERS
100%
What is the primary purpose of cell division?
The primary purpose of cell division is growth, repair, and reproduction.
Which phase of the cell cycle is the longest?
Interphase
During which phase of mitosis do the chromosomes align at the center of
the cell?
Metaphase
Which structure helps in the separation of chromosomes during mitosis?
Spindle fibers
What is the correct sequence of the stages of mitosis?
Prophase, metaphase, anaphase, telophase
Which process results in the production of gametes?
Meiosis
How many daughter cells are produced at the end of mitosis?
Two
How many chromosomes are present in human somatic cells after
mitosis?
46
Which phase of mitosis is characterized by the nuclear envelope breaking
down?
Prophase
What happens during cytokinesis?
The cytoplasm divides, forming two separate cells.

,How does mitosis differ from meiosis?
Mitosis produces genetically identical cells, while meiosis produces
genetically unique cells.
Which phase of meiosis is responsible for genetic variation?
Prophase I
What structure holds sister chromatids together?
Centromere
What is the function of the centrioles in cell division?
They help organize the spindle fibers.
How many daughter cells are produced at the end of meiosis?
Four
What is the chromosome number of human gametes?
23
At what stage do homologous chromosomes separate during meiosis?
Anaphase I
What is crossing over, and why is it important?
It is the exchange of genetic material between homologous chromosomes,
increasing genetic diversity.
Which type of cell division occurs in prokaryotic cells?
Binary fission
Why is meiosis important for sexual reproduction?
It ensures genetic diversity and maintains chromosome number across
generations.
Which type of cell undergoes mitosis?
Somatic cells
In which stage of meiosis do sister chromatids separate?
Anaphase II

, What is a key difference between mitosis and binary fission?
Binary fission occurs in prokaryotic cells, while mitosis occurs in
eukaryotic cells.
What is the result of uncontrolled cell division?
Cancer
Which type of reproduction requires meiosis?
Sexual reproduction
What is the significance of the G1 phase in the cell cycle?
The cell grows and synthesizes necessary proteins for DNA replication.
Which checkpoint in the cell cycle ensures DNA replication is complete?
G2 checkpoint
What would happen if cytokinesis did not occur?
The cell would have multiple nuclei and fail to function properly.
What is the primary purpose of mitosis?
The primary purpose of mitosis is to produce two genetically identical
daughter cells for growth, repair, and maintenance of an organism.
Which of the following occurs during meiosis but not mitosis?
A. DNA replication
B. Crossing over
C. Chromosome alignment at the metaphase plate
D. Cytokinesis
Crossing over
During which phase of meiosis do homologous chromosomes separate?
A. Prophase I
B. Metaphase I
C. Anaphase I
D. Telophase II
Anaphase I

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