Definition Of Mitosis In Biology Quiz
You may only take this quiz twice and I will record the higher of the two grades. You will only have 15 minutes. Good Luck!
Questions and Answers
- 1.
Which of the following is NOT part of mitosis?
- A.
Prophase
- B.
Interphase
- C.
Telophase
- D.
Metaphase
Correct Answer
B. InterpHaseExplanation
Interphase is not part of mitosis. Interphase is the phase in the cell cycle where the cell grows, replicates its DNA, and prepares for cell division. Mitosis, on the other hand, is the process of nuclear division in which the replicated chromosomes are separated into two identical sets. It consists of four main stages: prophase, metaphase, anaphase, and telophase. Therefore, interphase is not a part of mitosis.Rate this question:
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- 2.
A spindle forms during which phase?
- A.
Prophase
- B.
Metaphase
- C.
Anaphase
- D.
Telophase
Correct Answer
A. PropHaseExplanation
During prophase, the spindle fibers begin to form. These fibers are responsible for separating the chromosomes during cell division. Therefore, the correct answer is prophase.Rate this question:
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- 3.
The phase of mitosis in which the spindle fibers break apart, two new nuclear membranes begin to form, and the chromosomes disperse into chromatin is
- A.
Prophase
- B.
Metaphase
- C.
Anaphase
- D.
Telophase
Correct Answer
D. TelopHaseExplanation
In telophase, the spindle fibers break apart, allowing the two new nuclear membranes to form around the separated chromosomes. The chromosomes disperse into chromatin, which is the relaxed form of DNA. This phase marks the end of mitosis and prepares for the next stage of the cell cycle.Rate this question:
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- 4.
Equatorial plate of the mitotic spindle is formed during the _______.
- A.
Prophase
- B.
Metaphase
- C.
Anaphase
- D.
Telophase
Correct Answer
B. MetapHaseExplanation
The equatorial plate of the mitotic spindle is formed during the metaphase of cell division. During metaphase, the chromosomes align at the center of the cell, forming a plane called the equatorial plate or metaphase plate. This alignment is crucial for the accurate separation of chromosomes during anaphase. The equatorial plate ensures that each daughter cell receives an equal and complete set of chromosomes.Rate this question:
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- 5.
During which stage of mitosis do chromatids separate.
- A.
Prophase
- B.
Metaphase
- C.
Anaphase
- D.
Cytokinesis
Correct Answer
C. AnapHaseExplanation
During the stage of anaphase in mitosis, chromatids separate. This occurs when the centromeres holding the sister chromatids together divide, allowing each chromatid to be pulled towards opposite ends of the cell by the spindle fibers. As a result, two identical sets of chromosomes are formed, which will eventually be enclosed in separate nuclei during telophase.Rate this question:
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- 6.
The number of chromosomes in a human cell is _______.
- A.
2
- B.
23
- C.
18
- D.
46
Correct Answer
D. 46Explanation
The correct answer is 46 because a human cell typically contains 46 chromosomes. Chromosomes are structures within cells that carry genetic information in the form of DNA. Humans have 23 pairs of chromosomes, with one set inherited from each parent, resulting in a total of 46 chromosomes in most cells of the body.Rate this question:
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- 7.
Cells undergo ___________ at the end of the cell cycle.
- A.
Interkinesis
- B.
Cytokinesis
- C.
Telophase
- D.
Gap 2
Correct Answer
B. CytokinesisExplanation
Cytokinesis is the correct answer because it is the process in which the cytoplasm of a cell divides into two daughter cells, marking the end of the cell cycle. During cytokinesis, the cell membrane pinches inwards or a cell plate forms to separate the two nuclei, resulting in the formation of two separate cells. This process ensures that each daughter cell receives a complete set of genetic material and other cellular components.Rate this question:
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- 8.
Durring cytokinesis in plants a ________ is formed.
- A.
Cell plate
- B.
Cleavage furrow
- C.
Cell wall
- D.
Midline
Correct Answer
A. Cell plateExplanation
During cytokinesis in plants, a cell plate is formed. This is because plant cells have a rigid cell wall that prevents them from undergoing the same process of cleavage furrow formation as animal cells. Instead, a new cell wall is constructed between the two daughter cells, which is known as the cell plate. The cell plate is made up of vesicles containing cell wall materials, such as cellulose, that fuse together and eventually form a complete cell wall, separating the two daughter cells.Rate this question:
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- 9.
Durring cytokinesis in animal cells a ________ is formed.
- A.
Cell plate
- B.
Cleavage furrow
- C.
Cell wall
- D.
Midline
Correct Answer
B. Cleavage furrowExplanation
During cytokinesis in animal cells, a cleavage furrow is formed. This is a constriction that occurs at the equator of the cell, dividing it into two daughter cells. The cleavage furrow is formed by a contractile ring of actin and myosin filaments that gradually contracts, pinching the cell membrane inward until it separates the cytoplasm of the parent cell into two distinct cells. This process is necessary for the completion of cell division and the formation of two genetically identical daughter cells.Rate this question:
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- 10.
The nuclear membrane is formed around the newly-formed sets of daughter chromosomes during the telophase.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
During telophase, the nuclear membrane reforms around the newly-formed sets of daughter chromosomes. This is necessary to separate the genetic material from the rest of the cell and protect it. The nuclear membrane acts as a barrier, controlling the movement of substances in and out of the nucleus. Therefore, the statement that the nuclear membrane is formed around the newly-formed sets of daughter chromosomes during telophase is true.Rate this question:
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- 11.
During mitosis, loosely arranged strands of chromosomes become coiled, shortened and distinct during the metaphase.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
During mitosis, chromosomes do indeed become coiled, shortened, and distinct, but this occurs during the prophase stage, not the metaphase stage. In metaphase, the chromosomes align themselves along the equatorial plate of the cell. Therefore, the statement that chromosomes become coiled, shortened, and distinct during metaphase is false.Rate this question:
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Aug 05, 2024Quiz Edited by
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Dec 01, 2009Quiz Created by
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