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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After meiosis I, the resultant daughter cells have

1. same amount of DNA as in the parent cell in S

2. twice the amount of DNA in comparison to haploid

3. same amount of DNA in comparison to haploid gamete

4. four times the amount of DNA in comparison to haploid gamete

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 appearance of recombination nodules on homologous chromosomes during meiosis characterizes:
1. Terminalization
2. Synaptonemal complex
3. Bivalent
4. Sites at which crossing over occurs
Subtopic:  Cell Cycle: Meiosis I |
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Regarding Meiosis, which of the statement is incorrect ?
1. Four haploid cells are formed at the end of Meiosis-II
2. There are two stage in Meiosis, Meiosis-I and II
3. DNA replication occurs in S phase of Meiosis-II
4. Pairing of homologous chromosomes and recombination occurs in Meiosis-I
Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
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In prophase I of Meiosis, chromosomes start pairing together and synapsis takes place. This process occurs during which of the following stage? 
1. Pachytene 
2. Diplotene 
3. Leptotene 
4. Zygotene 

Subtopic:  Cell Cycle: Meiosis I |
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Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). 
Assertion (A): The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and formation of X shaped structures called chiasmata 
Reason(R): In oocytes of some vertebrates, diplotene can last for months or years. In the light of the above statements, choose the correct answer from the options given below: 
1. (A) is correct but (R) is not correct 
2. (A) is not correct but (R) is correct 
3. Both (A) and (R) are correct and (R) is the correct explanation of (A) 
4. Both (A) and (R) are correct but (R) is not the correct explanation of (A)

Subtopic:  Cell Cycle: Meiosis I |
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