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Q. No.
Assertion(A):
Mitosis does play a role in gamete formation.
Reason(R):
Haploid organisms divide by mitosis.
1.
Both (A) & (R) are true and (R) is the correct explanation of (A).
2.
Both (A) & (R) are true but (R) is not the correct explanation of (A)
3.
(A) is a true statement but (R) is false.
4.
Both (A) and (R) are false statements.
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
From NCERT
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Given its composition and location, the phragmoplast should be directly involved in the
| 1. | segregation of daughter chromosomes during anaphase |
| 2. | poleward migration of centrosomes during prophase |
| 3. | synthesis of sporopollenin during G1 and G2 phases |
| 4. | construction of the cell plate during cytokinesis |
Subtopic: Intro to Cell Cycle & Interphase |
68%
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Hints
Select the correct option based on statements below:
| Assertion (A): | Meiosis leads to recombinations of genes. |
| Reason (R): | Crossing over occurs in pachytene sub-stage of prophase I of meiosis. |
| 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 I |
75%
From NCERT
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| Assertion(A): | Tendency of parental combinations to remain together is called crossing over. |
| Reason(R): | Crossing over provides proof in favour of the linear arrangement of genes on chromosomes. |
| 1. | Both (A) & (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is a true statement but (R) is false.. |
| 4. | Both (A) and (R) are false statements. |
Subtopic: Cell Cycle: Meiosis I |
53%
From NCERT
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
During which phase of mitosis do the chromatids become chromosomes?
| 1. | telophase | 2. | anaphase |
| 3. | prophase | 4. | metaphase |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
From NCERT
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During growth the contents of a nucleus in human body undergo profound changes. How many chromatids does it contain?
1. 96
2. 23
3. 46
4. 92
1. 96
2. 23
3. 46
4. 92
Subtopic: Intro to Cell Cycle & Interphase |
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Hints
In the adult animal, most of the cells appear to exhibit division except
1. Liver cells
2. Spleen cells
3. Blood cells
4. Heart cells
1. Liver cells
2. Spleen cells
3. Blood cells
4. Heart cells
Subtopic: Intro to Cell Cycle & Interphase |
85%
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Hints
Select correct combination of metaphase characteristics.
Choose the correct answer from the options given below:
1. A, B, D only
2. B, C, D only
3. E only
4. B, C, D, E only
| A. | Condensation of chromosomes is complete |
| B. | Chromosomes are moved to spindle equator |
| C. | Daughter chromosomes begin their migration towards the opposite poles |
| D. | Spindle fibers attach to kinetochores |
| E. | Chromosome moves away from the equatorial plate |
1. A, B, D only
2. B, C, D only
3. E only
4. B, C, D, E only
Subtopic: Cell Division: Mitosis (Karyokinesis) |
84%
From NCERT
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Arrange the following stages of chromosomal behaviour during Prophase-I of meiosis in the correct sequence.
Choose the correct answer from the options given below:
1. E, B, D, A, C
2. C, D, A, E, B
3. E, B, A, C, D
4. D, B, E, A, C
| A. | Appearance of recombination nodules |
| B. | Formation of synaptonemal complex |
| C. | Appearance of chiasmata |
| D. | Terminalisation of chiasmata |
| E. | Beginning of chromosomal compaction |
1. E, B, D, A, C
2. C, D, A, E, B
3. E, B, A, C, D
4. D, B, E, A, C
Subtopic: Cell Cycle: Meiosis I |
88%
From NCERT
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Hints
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Arrange in correct sequence with respect of Meiosis-I
Choose the correct from the options given below
1. A>B>C>D>E
2. C>E>A>B>D
3. D>B>C>E>A
4. A>D>C>B>E
| A. | Crossing over |
| B. | Chiasmata formation |
| C. | Compaction of chromosome |
| D. | Disappearance of nucleolus and breakdown of nuclear envelop |
| E. | Formation of synaptonemal complex |
1. A>B>C>D>E
2. C>E>A>B>D
3. D>B>C>E>A
4. A>D>C>B>E
Subtopic: Cell Cycle: Meiosis I |
89%
From NCERT
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