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Q. No.In animal cells, during the S phase:
I:
DNA replication begins in the cytoplasm
II:
The centriole duplicates in the nucleus
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) |
63%
From NCERT
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Consider the two statements:
| Statement I: | Mitosis helps in restoration of nuclear cytoplasmic ratio for effective working of a cell. |
| Statement II: | Mitosis leads to formation of genetically diverse cells leading to generation of variations. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement II is incorrect; Statement I is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
84%
From NCERT
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A cell has 2 pg DNA at G1 phase. What would be the amount of DNA in this cell at the end of anaphase I of meiosis I?
1. 2 pg
2. 4 pg
3. 6 pg
4. 8 pg
1. 2 pg
2. 4 pg
3. 6 pg
4. 8 pg
Subtopic: Intro to Cell Cycle & Interphase |
63%
From NCERT
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During diakinesis of prophase I:
The correct statements are:
1. I, II and III
2. I and II only
3. I and III only
4. II and III only
| I: | Terminalisation of chiasmata takes place. |
| II: | Meiotic spindle is assembled. |
| III: | Nucleolus disappears and the nuclear membrane breaks down. |
1. I, II and III
2. I and II only
3. I and III only
4. II and III only
Subtopic: Cell Cycle: Meiosis I |
67%
From NCERT
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The onion root tip cell has 16 chromosomes (2n). What would be the number of chromosomes in this cell after the S phase and at the end of mitotic anaphase, respectively?
1. 16 and 16
2. 16 and 32
3. 8 and 16
4. 16 and 8
1. 16 and 16
2. 16 and 32
3. 8 and 16
4. 16 and 8
Subtopic: Intro to Cell Cycle & Interphase |
52%
From NCERT
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Among eukaryotes, replication of DNA takes place in:
| 1. | G2 Phase | 2. | M phase |
| 3. | S phase | 4. | G1 phase |
Subtopic: Intro to Cell Cycle & Interphase |
89%
From NCERT
NEET - 2023
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The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
| 1. | Diakinesis | 2. | Zygotene |
| 3. | Pachytene | 4. | Diplotene |
Subtopic: Cell Cycle: Meiosis I |
75%
From NCERT
NEET - 2023
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Which of the following stages of meiosis involves division of centromere?
| 1. | Telophase | 2. | Metaphase I |
| 3. | Metaphase II | 4. | Anaphase II |
Subtopic: Cell Cycle: Meiosis II |
79%
From NCERT
NEET - 2023
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Match List I with List II:
| List I | List II | ||
| A. | M Phase | I. | Proteins are synthesized |
| B. | G2 Phase | II. | Inactive phase |
| C. | Quiescent stage | III. | Interval between mitosis and initiation of DNA replication |
| D. | G1 Phase | IV. | Equational division |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | II | IV | I | III |
| 2. | III | II | IV | I |
| 3. | IV | II | I | III |
| 4. | IV | I | II | III |
Subtopic: Intro to Cell Cycle & Interphase |
87%
From NCERT
NEET - 2023
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Select the correct statements.
Choose the correct answer from the options given below:
| A. | Tetrad formation is seen during Leptotene. |
| B. | During Anaphase, the centromeres split and chromatids separate. |
| C. | Terminalization takes place during Pachytene. |
| D. | Nucleolus, Golgi complex and ER are reformed during Telophase. |
| E. | Crossing over takes place between sister chromatids of homologous chromosome. |
Choose the correct answer from the options given below:
| 1. | B and E only | 2. | A and C only |
| 3. | B and D only | 4. | A, C and E only |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
84%
From NCERT
NEET - 2023
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