Q. No.How many of the given statements are true?
1. 1
2. 2
3. 3
4. 4
| I: | Gametes contain half the number of chromosomes found in somatic cells. |
| II: | Somatic cells have the diploid number of chromosomes. |
| III: | The haploid number of chromosomes in humans is 23. |
| IV: | The diploid number of chromosomes in humans is 23 pairs. |
2. 2
3. 3
4. 4
Subtopic: Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
71%
From NCERT
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The Mitotic phase of a typical eukaryotic cell is divided into:
| 1. | Two stages | 2. | Three stages |
| 3. | Four stages | 4. | Five stages |
Subtopic: Intro to Cell Cycle & Interphase |
From NCERT
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Some cells in adult animals do not appear to exhibit division. A typical example of such a cell will be:
| 1. | Skin epithelial cell | 2. | Neuron |
| 3. | Fibroblast | 4. | Phagocytes |
Subtopic: Intro to Cell Cycle & Interphase |
89%
From NCERT
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Identify the incorrect statement regarding the cell cycle of a typical eukaryotic cell:
| 1. | The interphase lasts more than 95% of the duration of the cell cycle. |
| 2. | M phase starts with the nuclear division. |
| 3. | Interphase is the resting stage in the cell cycle where the cell is metabolically inactive. |
| 4. | Neurons in human body are permanently in G0 phase of the cell cycle. |
Subtopic: Intro to Cell Cycle & Interphase |
82%
From NCERT
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The stage between the two meiotic divisions is called:
| 1. | interkinesis and there is no replication of DNA during this stage. |
| 2. | interkinesis and there is replication of DNA during this stage. |
| 3. | interphase II and there is no replication of DNA during this stage. |
| 4. | interphase II and there is replication of DNA during this stage. |
Subtopic: Intro to Cell Cycle & Interphase | Cell Cycle: Meiosis I |
88%
From NCERT
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Consider the given two statements:
| Assertion (A): | Meiosis is the mechanism by which conservation of specific chromosome number of each species is achieved across generations in sexually reproducing organisms. |
| Reason (R): | Cells in G0 stage no longer remain metabolically active and no longer proliferate unless called on to do so depending on the requirement of the organism. |
| 1. | (A) is True; (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 4. | (A) is False; (R) is True |
Subtopic: Intro to Cell Cycle & Interphase | Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
71%
From NCERT
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Consider the given two statements:
| Statement I: | With few exceptions, in animals, mitotic cell division is generally only seen in the diploid somatic cells. |
| Statement II: | The plants can show mitotic divisions in both haploid and diploid cells. |
| 1. | Statement I is incorrect; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Intro to Cell Cycle & Interphase |
87%
From NCERT
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Duration of cell cycle can vary from:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | organism to organism |
| II: | from cell type to cell type in the same organism |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Intro to Cell Cycle & Interphase |
79%
From NCERT
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Consider the given two statements:
| Assertion (A): | Plants continue to grow all their lives. |
| Reason (R): | All cells in a plant divide all the time. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Intro to Cell Cycle & Interphase |
75%
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G1 phase in a cell cycle:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | corresponds to the interval between initiation of mitosis and DNA replication. |
| II: | is characterised by a metabolically active cell that grows continuously and replicates its DNA. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Intro to Cell Cycle & Interphase |
From NCERT
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