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Q. No.What will be correct regarding metaphase of mitosis?
I:
The complete disintegration of the nuclear envelope marks the start of metaphase.
II:
Condensation of chromosomes is completed.
III:
All the chromosomes come to lie at the equator.
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Cell Division: Mitosis (Karyokinesis) |
84%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Prophase II: | The nuclear membrane disappears by the end of this stage and the chromosomes again become compact. |
| 2. | Metaphase II: | The chromosomes align at the equator and the microtubules from opposite poles of the spindle get attached to the kinetochores of sister chromatids. |
| 3. | Anaphase II: | The homologous chromosomes separate, while sister chromatids remain associated at their centromeres. |
| 4. | Telophase II: | The two groups of chromosomes once again get enclosed by a nuclear envelope |
Subtopic: Cell Cycle: Meiosis II |
82%
From NCERT
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| Assertion(A): | Mitosis is called equational division. |
| Reason(R): | The amount of DNA is the same in parent and progeny cells if it is mitosis. |
| 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) |
From NCERT
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| Assertion(A): | Meiosis reduces the chromosome number by half in gametes. |
| Reason(R): | Meiosis is called the reductional 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 Cycle: Meiosis I | Cell Cycle: Meiosis II |
From NCERT
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NEET 2026 - Target Batch - Vital
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| 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) |
50%
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. |
Subtopic: Cell Cycle: Meiosis II |
62%
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) |
88%
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 |
Subtopic: Intro to Cell Cycle & Interphase |
90%
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 |
79%
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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