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Q. No.At the onset of anaphase
1.
Chromosomal material condenses.
2.
Nucleolus, Golgi complex and ER reform.
3.
Chromosomes move to spindle equator and get aligned.
4.
Chromosomes arranged at metaphase plate split simultaneously.
Subtopic: Cell Division: Mitosis (Karyokinesis) |
79%
From NCERT
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Which of the following stages of cell are considered to be a part of cell cycle?
(a) G0 stage
(b) Post mitotic gap phase
(c) Resting phase
(d) Separation of cytoplasm
The correct ones are:
1. Only (a), (b) & (d)
2. Only (b) & (d)
3. Only (b), (c) & (d)
4. All (a), (b), (c) & (d)
(a) G0 stage
(b) Post mitotic gap phase
(c) Resting phase
(d) Separation of cytoplasm
The correct ones are:
1. Only (a), (b) & (d)
2. Only (b) & (d)
3. Only (b), (c) & (d)
4. All (a), (b), (c) & (d)
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
55%
From NCERT
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The most dramatic period of the cell cycle does not involve:
1. Duplication of centrioles
2. Disintegration of nuclear envelope
3. Decondensation of chromosomes
4. Development of nuclear envelope
1. Duplication of centrioles
2. Disintegration of nuclear envelope
3. Decondensation of chromosomes
4. Development of nuclear envelope
Subtopic: Cell Division: Mitosis (Karyokinesis) |
72%
From NCERT
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In which of the following phases of cell cycle, both, the amount of DNA as well as number of chromosomes in a cell is said to be double as compared to G1 phase of that cell?
1. Metaphase
2. G2 phase
3. Anaphase
4. Prophase
1. Metaphase
2. G2 phase
3. Anaphase
4. Prophase
Subtopic: Cell Division: Mitosis (Karyokinesis) |
70%
From NCERT
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The components of mitotic apparatus are:
(a) Kinetochores
(b) Centromeres
(c) Asters
(d) Spindle fibres
Choose the correct ones.
1. (b) and (d)
2. (c) and (d)
3. (a) and (c)
4. (b) and (c)
(a) Kinetochores
(b) Centromeres
(c) Asters
(d) Spindle fibres
Choose the correct ones.
1. (b) and (d)
2. (c) and (d)
3. (a) and (c)
4. (b) and (c)
Subtopic: Cell Division: Mitosis (Karyokinesis) |
81%
From NCERT
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Read the following statements and select the correct option.
1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements are incorrect.
4. Both statements are correct.
| A: | Mitosis is seen in both diploid and haploid cells. |
| B: | Meiosis involves two sequential cycles of nuclear and cell division but only a single cycle of DNA replication. |
1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements are incorrect.
4. Both statements are correct.
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
80%
From NCERT
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During karyokinesis of mitosis phase, nuclear envelop is completely absent in:
1. Anaphase and telophase
2. Prophase and telophase
3. Metaphase and anaphase
4. Metaphase only
1. Anaphase and telophase
2. Prophase and telophase
3. Metaphase and anaphase
4. Metaphase only
Subtopic: Cell Division: Mitosis (Karyokinesis) |
81%
From NCERT
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The structure that serves as site of attachment of spindle fibres is:
| 1. | Made up of histone proteins wrapped around by DNA. |
| 2. | A small disc shaped structure at the surface of centromere. |
| 3. | Terminal end of chromosome. |
| 4. | Present between two sister chromatids in centromere. |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
91%
From NCERT
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Unidentical chromatids of a chromosome move to opposite poles during:
1. Anaphase II
2. Telophase
3. Mitotic anaphase
4. Anaphase I
1. Anaphase II
2. Telophase
3. Mitotic anaphase
4. Anaphase I
Subtopic: Cell Cycle: Meiosis II |
54%
From NCERT
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Each centrosome radiates out microtubules called:
1. Desmotubules
2. Asters
3. Centromeres
4. Spindle fibres
1. Desmotubules
2. Asters
3. Centromeres
4. Spindle fibres
Subtopic: Cell Division: Mitosis (Karyokinesis) |
80%
From NCERT
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