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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

Subtopic:  Intro to Cell Cycle & Interphase | Cell Division: Mitosis (Karyokinesis) |
 67%
Level 2: 60%+
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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) |
 85%
Level 1: 80%+
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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
Subtopic:  Intro to Cell Cycle & Interphase |
 65%
Level 2: 60%+
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During diakinesis of prophase I:
I: Terminalisation of chiasmata takes place.
II: Meiotic spindle is assembled.
III: Nucleolus disappears and the nuclear membrane breaks down.
The correct statements are:
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%
Level 2: 60%+
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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
Subtopic:  Intro to Cell Cycle & Interphase |
 61%
Level 2: 60%+
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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 |
 91%
Level 1: 80%+
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 |
 79%
Level 2: 60%+
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 |
 81%
Level 1: 80%+
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 |
 90%
Level 1: 80%+
NEET - 2023
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Select the correct statements.
 
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 |
 86%
Level 1: 80%+
NEET - 2023
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