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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A somatic cell that has just completed the S-phase of its cell cycle, as compared to a gamete of the same species has:

1. twice the number of chromosomes and twice the
amount of DNA
2. the same number of chromosomes but twice the
amount of DNA
3. twice the number of chromosomes and four times
the amount of DNA
4. four times the number of chromosomes and twice
the amount of DNA

Subtopic:  Intro to Cell Cycle & Interphase |
NEET - 2015
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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 |
 91%
From NCERT
AIPMT - 2014
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The enzyme recombinase is required at which stage of meiosis:
1. Pachytene
2. Zygotene
3. Diplotene
4. Diakinesis

Subtopic:  Cell Cycle: Meiosis I |
 88%
From NCERT
AIPMT - 2014
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The complex formed by a pair of synapsed homologous chromosomes is called:

1. Kinetochore

2. Bivalent

3. Axoneme

4. Equatorial plate

Subtopic:  Cell Cycle: Meiosis I |
 93%
From NCERT
AIPMT - 2013
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

During gamete formation, the enzyme recombinase participates during:
1. Metaphase-I
2. Anaphase-II
3. Prophase-I
4. Prophase-II

Subtopic:  Cell Cycle: Meiosis I |
 88%
From NCERT
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? 

1. Prophase-I during meiosis

2. Prophase-II during meiosis

3. Prophase of mitosis

4. Both prophase and metaphase of mitosis

Subtopic:  Cell Cycle: Meiosis I |
 83%
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints