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Biotechnology
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Cell Cycle
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Question
Microtubules grow from the poles to kinetochores of each chromatid during
Options
A. prophase
B. metaphase
C. anaphase
D. telophase
Correct Answer
prophase
Cell Cycle problems
Search Results
1. Which of the following triggers the division of activated T lymphocytes?
Options
A. FGF
B. Interlukin 2
C. PDGF
D. Erythroprotein
Show Answer
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Discuss
Correct Answer: Interlukin 2
2. The term, not related to mitosis is
Options
A. gametes
B. chromosomes
C. DNA replication
D. somatic cells
Show Answer
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Discuss
Correct Answer: gametes
3. The term homologous chromosomes
Options
A. refers to replications of the same chromosome
B. is another name for sister chromatids
C. must be haploid
D. means a pair of chromosomes of the same kind, such as sex chromosomes
Show Answer
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Correct Answer: means a pair of chromosomes of the same kind, such as sex chromosomes
4. Which phase of mitosis is associated with separation of chromatids?
Options
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Show Answer
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Discuss
Correct Answer: Anaphase
5. Which of the following statements about mitosis is incorrect?
Options
A. The daughter nuclei are genetically identical to the parent nucleus
B. Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
C. Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize
D. Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers
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Discuss
Correct Answer: Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
6. At which of the following check point, mitosis is controlled?
Options
A. G
1
B. G
2
C. M
D. S
Show Answer
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Discuss
Correct Answer: G
2
7. Which of the following is the normal cell cycle, primarily regulated at checkpoints?
Options
A. Metaphase in mitosis
B. Anaphase, G1 boundary
C. G1-S boundary
D. S-G2 boundary
Show Answer
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Correct Answer: G1-S boundary
8. Which of the following is the primary growth phase of a cell?
Options
A. G
1
B. G
2
C. M
D. G
0
Show Answer
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Discuss
Correct Answer: G
1
9. The G0 phase is
Options
A. a permanent state of all body cells
B. the state of most cells in an animal body
C. another name for interphase
D. all of the above
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Correct Answer: the state of most cells in an animal body
10. Which of the following from a blood clot stimulates the growth of cells in the healing process?
Options
A. EGF
B. PDGF
C. MPF
D. NGF
Show Answer
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Discuss
Correct Answer: PDGF
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