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Q. No.In plant cells during the S phase,
A:
DNA replication begins in the nucleus
B:
centriole duplicates in the cytoplasm
1. Only A is correct
2. Only B is correct
3. Both A and B are correct
4. Both A and B are incorrect
Subtopic: Intro to Cell Cycle & Interphase |
From NCERT
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Which of the following does not take place during telophase of mitosis?
| 1. | Chromosomes become discrete. |
| 2. | Nuclear envelope reforms. |
| 3. | Chromosomes cluster at opposite spindle poles. |
| 4. | Nucleolus, endoplasmic reticulum, and Golgi complex reform. |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
60%
From NCERT
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A researcher is studying a plant species where the haploid number of chromosomes is 12 (n = 12). How many chromosomes would be visible in each daughter cell during metaphase of meiosis I?
| 1. | 24 | 2. | 6 |
| 3. | 12 | 4. | 18 |
Subtopic: Cell Cycle: Meiosis I |
52%
From NCERT
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The number of basic phases in the cell cycle of typical eukaryotic cells will be:
1. 2
2. 3
3. 4
4. 5
1. 2
2. 3
3. 4
4. 5
Subtopic: Intro to Cell Cycle & Interphase |
53%
From NCERT
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If there were four chromosomes present during prophase I, how many chromosomes are there in each cell at the end of anaphase II?
1. 2
2. 4
3. 8
4. 16
1. 2
2. 4
3. 8
4. 16
Subtopic: Cell Cycle: Meiosis II |
53%
From NCERT
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Consider the given two statements:
| Statement I: | At Metaphase I the chromosomes align at the equator and the microtubules from opposite poles of the spindle get attached to the kinetochores of sister chromatids. |
| Statement II: | At metaphase II the bivalent chromosomes align on the equatorial plate and microtubules from the opposite poles of the spindle attach to the kinetochore of homologous chromosomes. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is incorrect. |
| 3. | Statement I is correct and Statement II is correct. |
| 4. | Statement I is incorrect and Statement II is correct. |
Subtopic: Cell Cycle: Meiosis I |
59%
From NCERT
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In telophase I:
| Statement I: | The nuclear membrane and nucleolus reappear. |
| Statement II: | The chromosomes reach the extremely extended state of the interphase nucleus. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is incorrect. |
| 3. | Statement I is correct and Statement II is correct. |
| 4. | Statement I is incorrect and Statement II is correct. |
Subtopic: Cell Cycle: Meiosis I |
57%
From NCERT
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Consider the given two statements:
| Statement I: | In male honeybees, haploid cells divide by mitosis. |
| Statement II: | Higher plants show mitotic divisions only in diploid cells. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is incorrect. |
| 3. | Statement I is correct and Statement II is correct. |
| 4. | Statement I is incorrect and Statement II is correct. |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
58%
From NCERT
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Independent assortment during meiosis produces gametes with all possible combinations of material and paternal chromosomes. With regard to chromosomes, then, a diploid cell with four chromosomes produces how many different kinds of haploid gametes?
1. Two
2. Four
3. Eight
4. Sixteen
1. Two
2. Four
3. Eight
4. Sixteen
Subtopic: Cell Cycle: Meiosis II |
54%
From NCERT
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The phase of the cell cycle in which the cell prepares for mitosis is:
| 1. | G1 phase | 2. | S phase |
| 3. | G2 phase | 4. | M phase |
Subtopic: Intro to Cell Cycle & Interphase |
55%
From NCERT
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