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Q. No.Mitosis or equational division in haploid cells is seen:
1. Only in some lower plants
2. Both in plants and animals
3. in most of the animals
4. Only in some higher plants
Subtopic: Cell Division: Mitosis (Karyokinesis) |
62%
From NCERT
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Bivalents:
1. Are formed in pachytene stage
2. Are made up of two non-homologous chromosomes
3. Are stabilized by synaptonemal complex
4. Consist of two chromatids only
1. Are formed in pachytene stage
2. Are made up of two non-homologous chromosomes
3. Are stabilized by synaptonemal complex
4. Consist of two chromatids only
Subtopic: Cell Division: Mitosis (Karyokinesis) |
67%
From NCERT
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Which process restores the diploid phase in life cycle of sexually reproducing organisms?
1. Fertilisation
2. Mitosis
3. Plasmogamy
4. Meiosis
1. Fertilisation
2. Mitosis
3. Plasmogamy
4. Meiosis
Subtopic: Cell Cycle: Meiosis I |
66%
From NCERT
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The phase of cell division which is typically longer and more complex as compared to others is :
1. Telophase of mitosis
2. Prophase of meiosis I
3. Prophase of mitosis
4. Prophase of meiosis II
1. Telophase of mitosis
2. Prophase of meiosis I
3. Prophase of mitosis
4. Prophase of meiosis II
Subtopic: Cell Cycle: Meiosis I |
89%
From NCERT
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Under the microscope, we cannot see chromosome in which of the following phases of cell division?
1. Leptotene
2. Anaphase
3. Diakinesis
4. Late telophase
1. Leptotene
2. Anaphase
3. Diakinesis
4. Late telophase
Subtopic: Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
61%
From NCERT
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Select the incorrect match from the following:
| Column I | Column II | |
| 1. | Recombinase | Do not function in nucleoplasm |
| 2. | Crossing over | Enzyme-mediated process |
| 3. | Diakinesis | Represents transition to metaphase |
| 4. | Chiasmata | X-shaped structure |
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
81%
From NCERT
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A process that is common to metaphases of mitosis, meiosis I as well as meiosis II is:
| 1. | Alignment of chromosome at equatorial plate |
| 2. | Attachment of spindle fibres from centrioles to both of the kinetochores of each chromosome |
| 3. | Separation of sister chromatids |
| 4. | Exchange of genetic material between non-sister chromatids |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
77%
From NCERT
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The process that increases the genetic variability in the population of organisms from one generation to the next is:
| 1. | Synthesis of extra DNA during S phase of cell cycle |
| 2. | Pairing of homologous chromosomes |
| 3. | Recombination of genetic material during meiosis |
| 4. | Changes in chromosomes after disintegration of nuclear membrane |
Subtopic: Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
89%
From NCERT
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What will be the DNA content and number of chromosomes in a cell of after S phase as compared to the gamete of the same organism?
| 1. | Same DNA content but double chromosome number |
| 2. | Four times DNA content but double chromosome number |
| 3. | Same DNA content but half chromosome number |
| 4. | Half DNA content but double chromosome number |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
74%
From NCERT
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Synaptonemal complex is formed?
1. During anaphase
2. During metaphase
3. During prophase-II
4. During prophase-I of meiosis
1. During anaphase
2. During metaphase
3. During prophase-II
4. During prophase-I of meiosis
Subtopic: Cell Cycle: Meiosis I |
91%
From NCERT
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