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Q. No.In plant cell division, the formation of the new cell wall begins with the formation of a simple precursor called:
1.
the cell plate that represents the middle lamella
2.
the cell plate that represents the primary cell wall
3.
the cleavage furrow that represents the middle lamella
4.
the contractile ring that represents the primary cell wall
Subtopic: Cell Division: Mitosis (Cytokinesis) |
85%
From NCERT
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Splitting of centromere occurs in:
| 1. | Mitotic anaphase and Anaphase II |
| 2. | Mitotic anaphase and Anaphase I |
| 3. | Mitotic metaphase and Metaphase II |
| 4. | Mitotic metaphase and Metaphase I |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis II |
80%
From NCERT
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Which of the following is not associated with mitosis?
| 1. | Growth of multicellular living organisms |
| 2. | Restoration of effective nuclear/cytoplasmic ratio |
| 3. | Cell repair |
| 4. | Pairing of homologous chromosomes and crossing over |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
90%
From NCERT
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Between Telophase I and Prophase II:
| 1. | The nuclear membrane disappears |
| 2. | DNA does not replicate |
| 3. | A tetrad of cells is formed |
| 4. | There is a long lasting resting stage |
Subtopic: Cell Cycle: Meiosis I |
75%
From NCERT
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Which of the following does not take place during diakinesis of Meiosis I?
| 1. | Disappearance of nucleolus |
| 2. | Decondensation of chromosomes |
| 3. | Nuclear envelope breaks down |
| 4. | Assembly of meiotic spindle |
Subtopic: Cell Cycle: Meiosis I |
63%
From NCERT
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Meiosis in sexually reproducing organisms creates new variations by shuffling the available genetic material and leads to the formation of a recombinant DNA which is created at:
| 1. | Pachytene of Prophase I |
| 2. | Diplotene of Prophase I |
| 3. | Anaphase I of Meiosis I |
| 4. | Anaphase II of Meiosis II |
Subtopic: Cell Cycle: Meiosis I |
83%
From NCERT
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What stage of prophase I of meiosis I:
1. Zygotene
2. Pachytene
3. Diplotene
4. Diakinesis
| a. | is characterized by the visibility of chiasmata |
| b. | can last for months and years in some vertebrate oocytes |
2. Pachytene
3. Diplotene
4. Diakinesis
Subtopic: Cell Cycle: Meiosis I |
89%
From NCERT
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During which stage of the meiotic cell division does the centromere split leading to the separation of sister chromatids?
| 1. | Metaphase I | 2. | Metaphase II |
| 3. | Anaphase I | 4. | Anaphase II |
Subtopic: Cell Cycle: Meiosis II |
83%
From NCERT
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You want to study the morphology of chromosomes in a cell and you have selected a cell undergoing mitosis. Which stage will be the best for this purpose?
| 1. | Late prophase | 2. | Metaphase |
| 3. | Anaphase | 4. | Telophase |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
94%
From NCERT
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A cell decides not to divide and enters the Quiescent Stage (G0) exiting the cell cycle from:
1. G1 phase
2. S phase
3. G2 phase
4. M phase
1. G1 phase
2. S phase
3. G2 phase
4. M phase
Subtopic: Intro to Cell Cycle & Interphase |
88%
From NCERT
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