Which of the following stages of Meiosis I of Prophase I is not correctly matched with events occurring during that stage?

 

Stage

Event

1.

Zygotene

Pairing between homologous chromosomes

2.

Pachytene

Crossing over between sister chromatids of homologous chromosomes

3.

Diplotene

 Tendency of recombined homologues to separate

4.

Diakinesis

 Terminalization of chiasmata

Subtopic:  Cell Cycle: Meiosis I |
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Initiation of the assembly of mitotic spindle and the complete disintegration of the nuclear envelope can be observed in respectively

1.  Prophase and anaphase I.

2.  Metaphase and telophase.

3.  Prophase and metaphase.

4.  Metaphase and metaphase-I.

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 66%
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During cell cycle, events are under

1. Genetic control

2. Metabolic control

3. Cytoplasmic control

4. Mitochondrial control

Subtopic:  Intro to Cell Cycle & Interphase |
 76%
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The stage during which separation of the paired homologous chromosomes begins is:

1. Pachytene 2. Diplotene
3. Diakinesis 4. Zygotene
Subtopic:  Cell Cycle: Meiosis I |
 63%
From NCERT
NEET - 2018
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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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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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Consider the following four statements (I- IV) related to cell cycle, and select the correct option stating them as true (T) and false (F).

I. Cell growth in terms of cytoplasmic increase is a continuous process.
II. Interphase is the phase of actual cell division.
III. The number of chromosomes doubles in S-phase.
IV. The cell that does not divide further exits G1-phase to enter a metabolically inactive stage.

Options:
         I    II    III    IV

1.      T    F     F      F

2.      F    T     T     T

3.      F    F     T     T

4.      T    F     F     T

Subtopic:  Intro to Cell Cycle & Interphase |
 51%
From NCERT
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The microtubules from the opposite poles of the spindle attach to the pair of homologous chromosomes in

1. Metaphase - I 

2. Prophase - I

3. Metaphase 

4. Metaphase - II

Subtopic:  Cell Cycle: Meiosis I |
 74%
From NCERT
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By the end of Prophase II, chromosomes become

(1) Compact

(2) Loose

(3) Elongated

(4) Decondensed

Subtopic:  Cell Cycle: Meiosis II |
 66%
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When does Prophase II start usually?

(1) Chromosomes are fully elongated

(2) Before chromosomes are fully condensed

(3) Before chromosomes are fully elongated

(4) After chromosomes are fully elongated

Subtopic:  Cell Cycle: Meiosis II |
From NCERT
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