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Q. No.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)
Subtopic: Cell Division: Mitosis (Karyokinesis) |
81%
Level 1: 80%+
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Read the following statements and select the correct option.
| 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%
Level 1: 80%+
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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 |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
82%
Level 1: 80%+
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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) |
92%
Level 1: 80%+
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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 |
57%
Level 3: 35%-60%
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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%
Level 1: 80%+
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if 22 chromosomes are present at G1 phase the cycle then, the number of chromosomes after G2 phase will be:
1. 44
2. 22
3. 66
4. 11
1. 44
2. 22
3. 66
4. 11
Subtopic: Intro to Cell Cycle & Interphase |
89%
Level 1: 80%+
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Spindle fibres begin to form during __(i)___ and attach to specific site of chromosomes during __(ii)__.
Select the correct option to fill in the blanks (i) and (ii).
Select the correct option to fill in the blanks (i) and (ii).
| (i) | (ii) | |
| (1) | Prophase | Metaphase |
| (2) | Anaphase | Telophase |
| (3) | Metaphase | Anaphase |
| (4) | Prophase | Anaphase |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
82%
Level 1: 80%+
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What will be the DNA content at the end of S-phase of cell if its meiotic products have 8 pg of DNA in each cell?
1. 8 pg
2. 16 pg
3. 4 pg
4. 32 pg
1. 8 pg
2. 16 pg
3. 4 pg
4. 32 pg
Subtopic: Intro to Cell Cycle & Interphase |
Level 3: 35%-60%
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Chromosomes of the future nuclei move away from the equatorial plate during anaphase of:
The correct one(s) is/are:
1. (b) only
2. (a) and (b) only
3. All (a), (b) and (c)
4. (a) and (c) only
| (a) | Mitosis |
| (b) | Meiosis I |
| (c) | Meiosis II |
1. (b) only
2. (a) and (b) only
3. All (a), (b) and (c)
4. (a) and (c) only
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
Level 3: 35%-60%
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