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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Dissolution of the synaptonemal complex occurs during : 

(1) Zygote 

(2) Diplotene 

(3) Leptotene 

(4) Pachytene 

Subtopic:  Cell Cycle: Meiosis I |
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Match the following with respect to meiosis:

a.  Zygotene         i.  Terminalization

b.  Pachytene       ii.  Chiasmata

c.  Diplotene        iii.  Crossing over

d.  Diakinesis      iv.  Synapsis

Select the correct option from the following:

       (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 |
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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 |
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Crossing over takes place between which chromatids and in which stage of the cell cycle?

1. Non-sister chromatids of non-homologous chromosomes at Zygotene stage of prophase I.

2. Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I.

3. Non-sister chromatids of homologous chromosomes at Zygotene stage of prophase I.

4. Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.

Subtopic:  Cell Cycle: Meiosis I |
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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 |
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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 |
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In meiosis crossing over is initiated at
1. leptotene
2. zygotene
3. diplotene
4. pachytene

 

Subtopic:  Cell Cycle: Meiosis I |
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Arrange the following events of meiosis in correct Sequences 
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 |
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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 |
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