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Q. No.The phase of the cell cycle that lasts for the least time is the:
1.
G1 phase
2.
S phase
3.
G2 phase
4.
M phase
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
85%
Level 1: 80%+
Hints
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) |
57%
Level 3: 35%-60%
Hints
Identify the incorrect statement regarding cytokinesis:
| 1. | Animal cells divide by cleavage furrow |
| 2. | Cell plate formation takes place during cytokinesis in plant cells |
| 3. | The cell wall formation in plant cells starts near the existing lateral walls and grows inwards |
| 4. | At cytokinesis, mitochondria and plastids are distributed between daughter cells |
Subtopic: Cell Division: Mitosis (Cytokinesis) |
82%
Level 1: 80%+
Hints
At the metaphase plate:
| 1. | The sister chromatids of a chromosome are connected by their kinetochores to the spindle fibers from the same pole |
| 2. | The non sister chromatids of a chromosome are connected by their kinetochores to the spindle fibers from the same pole |
| 3. | The sister chromatids of a chromosome are connected by their kinetochores to the spindle fibers from the opposite poles |
| 4. | The non sister chromatids of a chromosome are connected by their kinetochores to the spindle fibers from the opposite poles |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
77%
Level 2: 60%+
Hints
Subtopic: Cell Division: Mitosis (Karyokinesis) |
64%
Level 2: 60%+
Hints
During which stage of mitosis do the following events occur?
| I: | Centromeres split and chromatids separate |
| II: | Chromatids move to opposite poles |
| 1. | Prophase | 2. | Metaphase |
| 3. | Anaphase | 4. | Telophase |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
89%
Level 1: 80%+
Hints
The cell shown in the given diagram is in:
 |
|
Subtopic: Cell Cycle: Meiosis I |
72%
Level 2: 60%+
Hints
All the following are significances of mitosis except:
| 1. | Restoration of nuclear/cytoplasmic ratio |
| 2. | Growth of living organisms |
| 3. | Replacement of lost cells |
| 4. | Generation of genetic variation |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
86%
Level 1: 80%+
Hints
Which of the following stages of Prophase I of meiosis I can last for many months or years in certain vertebrate oocytes?
| 1. | Zygotene | 2. | Pachytene |
| 3. | Diplotene | 4. | Diakinesis |
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
86%
Level 1: 80%+
Hints
Males produce gametes by mitosis in:
| 1. | Honey bees | 2. | Grasshopper |
| 3. | Birds | 4. | Drosophila melanogaster |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
89%
Level 1: 80%+
Hints
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