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Q. No.In meiosis, crossing over and exchange of genetic material between homologous chromosomes are catalyzed by the enzyme.
1. Phosphorylase
2. Recombinase
3. Transferase
4. Polymerase
Subtopic: Cell Cycle: Meiosis I |
93%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Identify the correct sequence of events during Prophase I of meiosis:
Choose the correct answer from the options given below :
1. (a), (b), (c), (d), (e)
2. (b), (c), (d), (e), (a)
3. (b), (a), (c), (e), (d)
4. (a), (c), (d), (e), (b)
| a. | Synapsis of homologous chromosomes |
| b. | Chromosomes become gradually visible under a microscope |
| c. | Crossing over between non-sister chromatids of homologous chromosomes |
| d. | Terminalisation of chiasmata |
| e. | Dissolution of synaptonemal complex |
Choose the correct answer from the options given below :
1. (a), (b), (c), (d), (e)
2. (b), (c), (d), (e), (a)
3. (b), (a), (c), (e), (d)
4. (a), (c), (d), (e), (b)
Subtopic: Cell Cycle: Meiosis I |
79%
From NCERT
NEET - 2022
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Bivalent or Tetrad formation is a characteristic feature observed during :
1. Synaptonemal complex in the zygotene stage
2. Chiasmata in the diplotene stage
3. Synaptonemal complex in the pachytene stage
4. Chiasmata in the zygotene stage
1. Synaptonemal complex in the zygotene stage
2. Chiasmata in the diplotene stage
3. Synaptonemal complex in the pachytene stage
4. Chiasmata in the zygotene stage
Subtopic: Cell Cycle: Meiosis I |
67%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
With respect to metaphase, which of the following statements is incorrect ?
| 1. | Complete disintegration of nuclear envelope takes place. |
| 2. | Chromosomes are highly condensed. |
| 3. | Metaphase chromosomes are made up of four sister chromatids held together by centromere. |
| 4. | Chromosomes lie at the equator of the cell. |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
65%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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The event shown in the given diagram takes place during:
| 1. Pachytene of Prophase I | 2. Diplotene of Prophase I |
| 3. Metaphase II | 4. Anaphase II |
Subtopic: Cell Cycle: Meiosis I |
85%
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A and B in the given diagram are events seen in Meiosis I and C and D are events seen in Meiosis II. Identify the correct match:
| A | Prophase I and arrow shows chiasmata |
| B | Anaphase I and arrow shows sister chromatids associated at centromere |
| C | Prophase II and arrows show attachment of spindle microtubules to kinetochore |
| D | Anaphase II and the diagram shows separated sister chromatids after the split of centromere |
| 1. Only A, B and C | 2. Only A, C and D |
| 3. Only B, C and D | 4. A, B, C and D |
Subtopic: Cell Cycle: Meiosis I |
61%
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The diagram shows cytokinesis in animal cell [I] and in plant cell [II]. What will be correct for A, B and C in these cells?
| Animal cell | Plant cell | |
| A | Furrow formed using actin and myosin | Vesicles from Golgi move to centre |
| B | The furrow reaches centre from periphery | Tubular structures merge to form plasma membrane |
| C | Cells pinched apart | Pectins deposited leading to formation of middle lamella |
| 1. Only A and B | 2. Only A and C |
| 3. Only B and C | 4. A, B and C |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
54%
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The given diagram shows a slide with cells labeled as A, B, C and D at different stages of cell division. Identify the correct match:
| A | B | C | D | |
| 1. | Interphase | Telophase | Prophase | Anaphase |
| 2. | Interkinesis | Anaphase | Prophase | Metaphase |
| 3. | Interkinesis | Telophase | Metaphase | Anaphase |
| 4. | Interphase | Prophase | Metaphase | Anaphase |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
65%
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In a eukaryote, the cell cycle typically is divided into:
1. Two phases
2. Three phases
3. Four phases
4. Five phases
1. Two phases
2. Three phases
3. Four phases
4. Five phases
Subtopic: Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
70%
From NCERT
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In a somatic eukaryotic cell undergoing mitosis, when do expect to find most number of chromosomes in the cell?
1. At the end of the G1 phase
2. At the end of the S phase
3. At the end of Anaphase
4. In the resultant daughter cells
1. At the end of the G1 phase
2. At the end of the S phase
3. At the end of Anaphase
4. In the resultant daughter cells
Subtopic: Cell Division: Mitosis (Karyokinesis) |
58%
From NCERT
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