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Q. No.The radial array of short microtubules that extends from each centrosome is termed as
1. Aster
2. Centrosome
3. Kinetochore
4. Microtubules
Subtopic: Cell Division: Mitosis (Karyokinesis) |
86%
From NCERT
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Given below are two statements
In light of the above statements, choose the correct answer from the options given below
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
| Statement I: | Kinases are enzymes that activate or inactivate other proteins by phosphorylating them. |
| Statement II: | Kinases that drive the cell cycle are present in an active form but at a constant concentration in the growing cell. |
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic: Intro to Cell Cycle & Interphase |
73%
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The drug Swinholide sequesters actin dimers and blocks the function of actin. Which of the following aspect of the animal cell cycle would be most disrupted by Swinholide?
1. Spindle formation
2. Spindle attachment to kinetochores
3. Cell elongation during anaphase
4. Cleavage furrow formation and cytokinesis
1. Spindle formation
2. Spindle attachment to kinetochores
3. Cell elongation during anaphase
4. Cleavage furrow formation and cytokinesis
Subtopic: Intro to Cell Cycle & Interphase |
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Post-mitotic gap phase is characterised by all, except
1. Synthesis of histone proteins
2. Synthesis of RNA and nucleotides
3. Most-variable in length
4. No change in DNA contents
1. Synthesis of histone proteins
2. Synthesis of RNA and nucleotides
3. Most-variable in length
4. No change in DNA contents
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
66%
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Duplication of DNA occurs in a phase which is also associated with synthesis of
1. RNA
2. Histone
3. Cyclins
4. ATP
1. RNA
2. Histone
3. Cyclins
4. ATP
Subtopic: Intro to Cell Cycle & Interphase |
76%
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Which of the following duplicates in cytoplasm in S-phase?
1. Chromosome
2. Centrioles
3. Chromatid
4. DNA
2. Centrioles
3. Chromatid
4. DNA
Subtopic: Intro to Cell Cycle & Interphase |
70%
From NCERT
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Which of the following is correctly matched?
| 1 | Spireme stage | – | Late prophase |
| 2 | Congression stage | – | Metaphase |
| 3 | Interzonal fibres formation | – | Telophase |
| 4 | Reappearance of ER and Golgi bodies | – | Anaphase |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
59%
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Centrifugal cytokinesis
1. Occurs in animals
2. Occurs by cell furrowing
3. Occurs by cell plate formation
4. Is characteristic of bacteria and lower plants only
1. Occurs in animals
2. Occurs by cell furrowing
3. Occurs by cell plate formation
4. Is characteristic of bacteria and lower plants only
Subtopic: Cell Division: Mitosis (Cytokinesis) |
76%
From NCERT
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Identify the phase at which most organelles duplicate
1. M-phase
2. G1 phase
3. G0 phase
4. G2 phase
1. M-phase
2. G1 phase
3. G0 phase
4. G2 phase
Subtopic: Intro to Cell Cycle & Interphase |
65%
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Which one of the following is not a diploid cell?
1. Zygote
2. Microspore mother cell
3. Primary oocyte
4. Ovum
1. Zygote
2. Microspore mother cell
3. Primary oocyte
4. Ovum
Subtopic: Cell Cycle: Meiosis I |
72%
From NCERT
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