Which of the following options gives the correct sequence of events during mitosis?

1. Condensation, nuclear membrane disassembly, arrangement at the equator, centromere division, segregation, telophase
2. Condensation, crossing over, nuclear membrane disassembly, segregation, telophase
3. Condensation, centromere division, segregation, arrangement at the equator, telophase
4. Condensation, nuclear membrane disassembly, crossing over, segregation, telophase

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 76%
From NCERT
NEET - 2017
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Match the stages of meiosis in Column I to their characteristic features in Column II and select the correct option using the codes given below:
Column I Column II
(a) pachytene (1) pairing of homologous chromosomes
(b) metaphase - 1 (2) terminalisation of chiasmata
(c) diakinesis (3) crossing-over takes place
(d) zygotene (4) chromosomes align at equatorial plate
1.  a-3 b-4 c-2 d-1
2.  a-1 b-4 c-2 d-3
3.  a-2 b-4 c-3 d-1
4.  a-4 b-3 c-2 d-1
Subtopic:  Cell Cycle: Meiosis I |
 89%
From NCERT
NEET - 2016
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Which of the following is not a characteristic feature during mitosis cells?
1. Disappearance of nucleolus 2. Chromosome movement
3. Synapsis 4. Spindle fibres
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 88%
From NCERT
NEET - 2016
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Spindle fibres attach on to?
1. kinetochore of the chromosome
2. centromere of the chromosome
3. kinetosome of the chromosome
4. telomere of the chromosome
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 94%
From NCERT
NEET - 2016
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In meiosis crossing over is initiated at?
1. leptotene
2. zygotene
3. diplotene
4. pachytene
Subtopic:  Cell Cycle: Meiosis I |
 83%
From NCERT
NEET - 2016
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Arrange the following events of meiosis in a correct sequence:
I. Crossing over 
II. Synapsis 
III. Terminalisation of chiasmata 
IV. Disappearance of nucleolus

1. II, I, IV, III 2. II, I, III, IV
3. I, II, III, IV 4. II, III, IV, I 
Subtopic:  Cell Cycle: Meiosis I |
 81%
From NCERT
NEET - 2015
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Match the following column I with column II. 

Column I  Column II
A. Synapsis aligns homologous chromosomes (i) Anaphase II
B. Synthesis of RNA and protein (ii) Zygotene
C. Action of enzyme recombinase (iii) G2 - phase
D. Centromeres do not separate, but chromatids move towards opposite poles (iv) Anaphase I
(v) Pachytene

1. A-(ii) B-(i) C-(iii) D-(iv)

2. A-(ii) B-(iii) C-(v) D-(iv)

3. A-(i) B-(ii) C-(v) D-(iv)

4. A-(ii) B-(iii) C-(iv) D-(v)

Subtopic:  Intro to Cell Cycle & Interphase | Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
 86%
From NCERT
NEET - 2015
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During which phase(s) of the cell cycle, amount of DNA in a cell remains at 4 C level if the initial amount is denoted as 2C:

1. G0 and G1

2. Gand S

3. Only G2

4. G2 and M

Subtopic:  Intro to Cell Cycle & Interphase |
 51%
From NCERT
AIPMT - 2014
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A stage in cell division is shown in the figure. Select the answer which gives the correct identification of the stage with its characteristics:
 

1.

Late anaphase

Chromosomes move away from the equatorial plate, Golgi complex not present

2.

Cytokinesis

Cell plate formed, mitochondria distributed between two daughter cells

3.

Telophase

Endoplasmic reticulum and nucleolus not reformed yet

4.

Telophase

Nuclear envelop reforms, Golgi complex reforms

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 74%
From NCERT
AIPMT - 2013
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In the 'S' phase of the cell cycle:

1. amount of DNA doubles in each cell.

2. amount of DNA remains the same in each cell

3. chromosome number is increased

4. amount of DNA is reduced to half in each cell.

Subtopic:  Intro to Cell Cycle & Interphase |
 92%
From NCERT
AIPMT - 2014
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