Identify the meiotic stage in which the homologous chromomes separate while the sister chromatids remain associated at their centromeres:

1. Anaphase I 2. Anaphase II
3. Metaphase I 4. Metaphase II

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 80%
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The complex formed by a pair of synapsed homologous chromosomes is called

1. Equatorial plate 2. Kinetochore
3. Bivalent 4. Axoneme
Subtopic:  Cell Cycle: Meiosis I |
 89%
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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.
A stage in cell division is shown in the figure. Select the answer which gives  correct identification of the stage with its characteristics.A. Telophase1.  Nuclear envelope reforms, Golgi complex reformsB. Late anaphase2.

Stages Description
1. Telophase Nuclear envelop reforms, Golgi complex reforms
2. Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present
3. Cytokinesis Cell plate formed, mitochondria distributed between two daughter cells
4. Telophase Endoplasmic reticulum and nucleolus not reformed yet
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 75%
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The enzyme recombinase is required at which stage of meiosis ?

1. Pachytene 2. Zygotene
3. Diplotene 4. Diakinesis
Subtopic:  Cell Cycle: Meiosis I |
 84%
From NCERT
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During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C ?

1. G0 and G1
2. G1 and S
3. Only G2
4. G2 and M

Subtopic:  Intro to Cell Cycle & Interphase |
 54%
From NCERT
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In S phase of the cell cycle
1. Amount of DNA doubles in each cell
2. Amount of DNA remains same in each cell
3. Chromosome number increases
4. Amount of DNA is reduced to half in each cell

Subtopic:  Intro to Cell Cycle & Interphase |
 92%
From NCERT
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Arrange the following events of meiosis in correct sequence
(a) Crossing over
(b) Synapsis
(c) Terminalisation of chiasmata
(d) Disappearance of nucleolus

1. (b), (c), (d), (a) 2. (b), (a), (d), (c)
3. (b), (a), (c), (d) 4. (a), (b), (c), (d)
Subtopic:  Cell Cycle: Meiosis II |
 77%
From NCERT
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A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has

1. Twice the number of chromosomes and twice the amount of DNA
2. 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 |
From NCERT
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In meiosis crossing over is initiated at

 
1. Pachytene 2. Leptotene
3. Zygotene 4. Diplotene
Subtopic:  Cell Cycle: Meiosis I |
 82%
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Which of the following is not a characteristic feature during mitosis in somatic cells?
1. Spindle fibres
2. Disappearance of nucleolus
3. Chromosome movement
4. Synapsis

Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
 84%
From NCERT
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