The fruit fly has 8 chromosomes (2n) in each cell. During the interphase of mitosis, if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after the S phase?

1. 4 2. 32
3. 8 4. 16

Subtopic:  Intro to Cell Cycle & Interphase |
 81%
From NCERT
NEET - 2021
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Which stage of meiotic prophase shows terminalisation of chiasmata as its distincitve feature?

1. Diakinesis

2. Pachytene

3. Leptotene

4. Zygotene

Subtopic:  Cell Cycle: Meiosis I |
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NEET - 2021
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The centriole undergoes duplication during:

1. Metaphase 2. G2 phase
3. S-phase 4. Prophase
Subtopic:  Intro to Cell Cycle & Interphase |
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From NCERT
NEET - 2021
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Match List-I with List-II

List-I List-II
(a) S 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. DNA replication

Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. iv i ii iii
2. ii iv iii i
3. iii ii i iv
4. iv ii iii i
Subtopic:  Intro to Cell Cycle & Interphase |
 88%
From NCERT
NEET - 2021
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Which of the following stages of meiosis involves division of centromere?

1. Anaphase II

2. Telophase II

3. Metaphase I

4. Metaphase II

Subtopic:  Cell Cycle: Meiosis II |
 84%
From NCERT
NEET - 2021
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Match the following events that occur in their respective phases of cell cycle and select the correct option:

Column I Column II
(a) G1 phase  (i) Cell grows and organelle duplication
(b) S phase  (ii) DNA replication and chromosome duplication
(c) G2 phase      (iii) Cytoplasmic growth
(d) Metaphase in M-phase    (iv) Alignment of chromosomes
 
Options: (a) (b) (c) (d)
1. (ii) (iii) (iv) (i)
2. (iii) (iv) (i) (ii)
3. (iv) (i) (ii) (iii)
4. (iii) (ii) (i) (iv)
Subtopic:  Intro to Cell Cycle & Interphase |
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NEET - 2020
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During Meiosis 1, in which stage synapsis takes place?

1. Pachytene 2. Zygotene
3. Diplotene 4. Leptotene
Subtopic:  Cell Cycle: Meiosis I |
 85%
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NEET - 2020
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Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:

1. Anaphase 2. Telophase
3. Prophase 4. Metaphase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 78%
From NCERT
NEET - 2020
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In plant cell division, the formation of the new cell wall begins with the formation of a simple precursor called:
1. the cell plate that represents the middle lamella
2. the cell plate that represents the primary cell wall
3. the cleavage furrow that represents the middle lamella
4. the contractile ring that represents the primary cell wall
Subtopic:  Cell Division: Mitosis (Cytokinesis) |
 84%
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Splitting of centromere occurs in:
1. Mitotic anaphase and Anaphase II
2. Mitotic anaphase and Anaphase I
3. Mitotic metaphase and Metaphase II
4. Mitotic metaphase and Metaphase I
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis II |
 80%
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