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Q. No.Assertion(A): Cell growth disturbs the nuclear-cytoplasmic ratio.
Reason(R): The disturbance in the nucleo-cytoplasmic ratio stimulates cell division.
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: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
From NCERT
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Assertion (A): In meiosis II division is equational.
Reason (R): Homologous chromosomes are separated in anaphase II
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. Both (A) and (R) are false.
Reason (R): Homologous chromosomes are separated in anaphase II
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. Both (A) and (R) are false.
Subtopic: Cell Cycle: Meiosis II |
61%
From NCERT
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The cell, undergoing cell division, as shown in the given figure, is at:
1. Early Prophase
2. Transition to Metaphase
3. Anaphase
4. Telophase
1. Early Prophase
2. Transition to Metaphase
3. Anaphase
4. Telophase
Subtopic: Cell Division: Mitosis (Karyokinesis) |
87%
From NCERT
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If a cell had 2N chromosomes and 2C DNA content in G1 phase, what would be the corresponding values at the end of the S phase?
1. 2N, 2C
2. 4N, 2C
3. 2N, 4C
4. 4N, 4C
1. 2N, 2C
2. 4N, 2C
3. 2N, 4C
4. 4N, 4C
Subtopic: Cell Division: Mitosis (Karyokinesis) |
88%
From NCERT
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Consider the two statements:
| Statement I: | The interphase represents the phase between two successive M phases and DNA replication takes place in the interphase. |
| Statement II: | The stage between the two meiotic divisions is called interkinesis and there is no replication of DNA during interkinesis. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Intro to Cell Cycle & Interphase |
78%
From NCERT
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Match the stage of Prophase I given in Column I with the corresponding event in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Zygotene | P | Terminalisation of chiasmata |
| B | Pachytene | Q | Appearance of chiasmata |
| C | Diplotene | R | Crossing over |
| D | Diakinesis | S | Pairing of homologues |
| A | B | C | D | |
| 1. | Q | R | P | S |
| 2. | S | R | Q | P |
| 3. | Q | S | R | P |
| 4. | R | S | P | Q |
Subtopic: Cell Cycle: Meiosis I |
89%
From NCERT
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In the 24 hour average duration of cell cycle of a human cell, cell division properly lasts for:
1. only about 1 hour
2. approximately 90 minutes
3. between 4 and 5 hours
4. 95% time of the cell cycle
1. only about 1 hour
2. approximately 90 minutes
3. between 4 and 5 hours
4. 95% time of the cell cycle
Subtopic: Intro to Cell Cycle & Interphase |
83%
From NCERT
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In animal cells, during the S phase:
| I: | DNA replication begins in the cytoplasm |
| II: | The centriole duplicates in the nucleus |
1. Only I is correct
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 | Cell Division: Mitosis (Karyokinesis) |
62%
From NCERT
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Consider the two statements:
| Statement I: | Mitosis helps in restoration of nuclear cytoplasmic ratio for effective working of a cell. |
| Statement II: | Mitosis leads to formation of genetically diverse cells leading to generation of variations. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement II is incorrect; Statement I is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
84%
From NCERT
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A cell has 2 pg DNA at G1 phase. What would be the amount of DNA in this cell at the end of anaphase I of meiosis I?
1. 2 pg
2. 4 pg
3. 6 pg
4. 8 pg
1. 2 pg
2. 4 pg
3. 6 pg
4. 8 pg
Subtopic: Intro to Cell Cycle & Interphase |
63%
From NCERT
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