Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:

1. Anaphase 2. Telophase
3. Prophase 4. Metaphase

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 76%
From NCERT
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 |
 83%
From NCERT
NEET - 2020
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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 |
 87%
From NCERT
NEET - 2020
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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 |
 76%
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 |
 87%
From NCERT
NEET - 2021
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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 |
 80%
From NCERT
NEET - 2021
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Match the following with respect to meiosis:

Column I Column II
(a) Zygotene    (i) Terminalization
(b) Pachytene (ii) Chiasmata
(c) Diplotene  (iii) Crossing over
(d) Diakinesis  (iv) Synapsis


Select the correct option from the following:

Options: (a) (b) (c) (d)
1. iv iii ii i
2. i ii iv iii
3. ii iv iii i
4. iii iv i ii

     

Subtopic:  Cell Cycle: Meiosis I |
 84%
From NCERT
NEET - 2020
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Dissolution of the synaptonemal complex occurs during : 

1. Zygote  2. Diplotene 
3. Leptotene  4. Pachytene 
Subtopic:  Cell Cycle: Meiosis I |
 81%
From NCERT
NEET - 2020
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Identify the correct statement with regard to G1 phase (Gap 1) of interphase:

1. The reorganisation of all cell components takes place.
2. The cell is metabolically active and grows but does not replicate its DNA
3. Nuclear division takes place
4. DNA synthesis or replication takes place. 

Subtopic:  Intro to Cell Cycle & Interphase |
 87%
From NCERT
NEET - 2020
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Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage G0. This process occurs at the end of:

1.  G1 phase

2.  S phase

3.  G2 phase

4.  M phase 

Subtopic:  Intro to Cell Cycle & Interphase |
 67%
From NCERT
NEET - 2020
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