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Q. No.The cells in the quiescent stage [G0] phase of the cell cycle:
1.
exit from the S phase
2.
continue the events of cell cycle and complete the division
3.
are metabolically active
4.
cannot ever proliferate
Subtopic: Intro to Cell Cycle & Interphase |
77%
Level 2: 60%+
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Mitosis is also called ‘equational division’ because:
| 1. | the number of chromosomes in both daughter cells are the same |
| 2. | the sum of the number of chromosomes in two daughter cells is equal to the number of chromosomes in the parent cell |
| 3. | each progeny cell receives only one set of chromosomes from the parent cell |
| 4. | the number of chromosomes in the parent and the progeny cells is the same |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
62%
Level 2: 60%+
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The phase of the cell cycle during which DNA replication takes place is:
| 1. | G1 phase | 2. | S phase |
| 3. | G2 phase | 4. | M phase |
Subtopic: Intro to Cell Cycle & Interphase |
94%
Level 1: 80%+
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The correct chronology of stages of karyokinesis in mitosis is:
| 1. | Prophase – Anaphase – Metaphase – Telophase |
| 2. | Prophase – Metaphase – Anaphase – Telophase |
| 3. | Prophase – Metaphase – Telophase – Anaphase |
| 4. | Telophase – Anaphase – Metaphase – Prophase |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
95%
Level 1: 80%+
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Subtopic: Intro to Cell Cycle & Interphase |
74%
Level 2: 60%+
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Prophase of mitosis is not characterized by:
| 1. | condensation of chromatin |
| 2. | migration of centrosomes to opposite poles |
| 3. | formation of mitotic apparatus |
| 4. | pairing of homologous chromosomes |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
72%
Level 2: 60%+
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The start of the second phase of mitosis, metaphase, is marked by:
| 1. | complete disintegration of the nuclear envelope |
| 2. | alignment of chromosomes at the equatorial plate |
| 3. | de-condensation of chromatin |
| 4. | reappearance of the nucleolus |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
60%
Level 2: 60%+
Hints
Consider the given two statements:
| I: | Morphology of chromosomes is best studied at metaphase |
| II: | At this stage, a chromosome is made up of two sister chromatids, held together at the centromere |
1. Both I and II are True and II explains I
2. Both I and II are True but II does not explain I
3. I is True but II is False
4. I is False but II is True
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
Level 3: 35%-60%
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All the following key events take place during telophase of mitosis except:
| 1. | Chromosomes cluster at the opposite spindle poles |
| 2. | Chromosomes become discrete |
| 3. | Nuclear envelope reforms |
| 4. | Nucleolus, ER and Golgi complex reform |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
58%
Level 3: 35%-60%
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Liquid endosperm in coconut forms due to:
| 1. | Failure of cytokinesis after karyokinesis |
| 2. | Failure of karyokinesis before cytokinesis |
| 3. | Disruption of spindle fibers at metaphase |
| 4. | Continued DNA replication during cytokinesis |
Subtopic: Cell Division: Mitosis (Cytokinesis) |
83%
Level 1: 80%+
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