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Q. No.Which one of the following is not a diploid cell?
1.
Zygote
2.
Microspore mother cell
3.
Primary oocyte
4.
Ovum
Subtopic: Cell Cycle: Meiosis I |
72%
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Subtopic: Cell Cycle: Meiosis I |
59%
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Match the column I with column II
1. a(ii), b(i), c(iii), d(iv)
2. a(ii), b(i), c(iv). d(iii)
3. a(i), b(ii), c(iii), d(iv)
4. a(iii),b(ii), c(i), d(iv)
| Column I | Column II | ||
| a | Appearance of recombination nodules | (i) | Diplotene |
| b | Desynapsis | (ii) | Pachytene |
| c | Disjunction of homologous chromosomes | (iii) | Anaphase-I |
| d | Centromere division | (iv) | Anaphase-II |
2. a(ii), b(i), c(iv). d(iii)
3. a(i), b(ii), c(iii), d(iv)
4. a(iii),b(ii), c(i), d(iv)
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
79%
From NCERT
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Number of meiotic divisions required to produce 1000 pollen grains in wheat is
1. 250
2. 500
3. 1000
4. 1250
1. 250
2. 500
3. 1000
4. 1250
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
68%
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Formation and dissolution of synaptonemal complex takes place, respectively in
| 1. | Zygotene and diakinesis |
| 2. | Zygotene and diplotene |
| 3. | Pachytene and diplotene |
| 4. | Pachytene and diakinesis |
Subtopic: Cell Cycle: Meiosis I |
75%
From NCERT
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Which one is correct with respect to mitosis?
| 1. | Prophase is the shortest phase |
| 2. | It occurs only in apical meristem |
| 3. | It occurs in diploid cells only |
| 4. | It helps in growth and repair of cells in multicellular organisms |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
84%
From NCERT
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The site of attachment of spindle fibers to chromosomes is
| 1. | Centromere | 2. | Telomere |
| 3. | Kinetochore | 4. | Sister chromatids |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
92%
From NCERT
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Which of the given statements is not related to cytokinesis of a plant cell?
| 1. | New cell wall formation begins with the formation of a precursor called cell plate. |
| 2. | Distribution of plastids in two daughter cells |
| 3. | Wall formation starts in the centre |
| 4. | Formation of a furrow in the plasma membrane |
Subtopic: Cell Division: Mitosis (Cytokinesis) |
77%
From NCERT
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Anastral and acentric cell division
| 1. | Involves aster formation |
| 2. | Found in plants |
| 3. | Involves spindle fibers which arise from centrioles |
| 4. | Both (1) & (2) |
Subtopic: Intro to Cell Cycle & Interphase |
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Metaphase is the best phase to study morphology of chromosomes. How many chromatids you can observe in a somatic cell of human at metaphase?
1. 23
2. 46
3. 92
4. 23 pairs
1. 23
2. 46
3. 92
4. 23 pairs
Subtopic: Cell Division: Mitosis (Karyokinesis) |
54%
From NCERT
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