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Q. No.

The following diagram refers to a typical cell cycle.

Identify the parts marked as X, Y and Z.

1. X - G1; Y - S; Z - G2                      2. X - G2; Y - S; Z - G1

3. X - G0; Y - S; Z - G2                     4. X - G1; Y - G2; Z - G0

Subtopic:  Intro to Cell Cycle & Interphase |
 94%
Level 1: 80%+
Hints

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

(1) Metaphase I    

(2) Metaphase II  

(3) Anaphase I     

(4) Anaphase II

Subtopic:  Cell Cycle: Meiosis I |
 83%
Level 1: 80%+
Hints

At which stage of meiosis does the genetic constitution of gametes is finally decided:

1. Metaphase I    
2. Anaphase II    
3. Metaphase II   
4. Anaphase I
Subtopic:  Cell Cycle: Meiosis I |
Level 3: 35%-60%
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Select the correct statement about G1 phase:

(1) Cell is metabolically inactive

(2) DNA in the cell does not replicate

(3) It is not a phase of synthesis of macromolecules

(4) Cell stops growing

Subtopic:  Intro to Cell Cycle & Interphase |
 83%
Level 1: 80%+
Hints
A. Most dramatic period of cell cycle involving a major reorganization of virtually all components of the cell
B. It represents the phase when the actual cell division occurs


These statements (A & B) are concerned with
1. S-phase
2. G1 phase
3. M-phase
4. G2 phase

Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
 90%
Level 1: 80%+
Hints

Select the correct statement

1. Chromosomes decondense and lose their individuality during anaphase
2. Spindle fibres attach to kinetochores of chromosomes during early prophase
3. Centriole begins to move towards opposite poles of the cell during metaphase
4. DNA is replicated during S-phase of cell cycle
Subtopic:  Intro to Cell Cycle & Interphase |
 88%
Level 1: 80%+
Hints
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Interkinesis stage of cell cycle

1. Is generally short lived 
2. Shows DNA duplication
3. Is generally long lived
4. Is followed by prophase-I
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 78%
Level 2: 60%+
Hints

Select the incorrect statement

1. Yeast can progress through the cell cycle in about 90 minutes
2. DNA synthesis is a continuous process in cell cycle
3. Duration of I-phase in the cell cycle is more than 95%
4. Events of cell cycle are under genetic control
Subtopic:  Intro to Cell Cycle & Interphase |
 80%
Level 1: 80%+
Hints

Cells that do not divide further exit G1 phase to enter an inactive stage called

1. G2 phase                 
2. G0 stage
3. S-phase                  
4. M-phase
Subtopic:  Intro to Cell Cycle & Interphase |
 96%
Level 1: 80%+
Hints
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Select the odd one out with respect to mitosis

1. It helps the organisms in both sexual and asexual reproduction
2. It is called equational division
3. It takes place only in diploid cells of plants
4. It helps in cell repair
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
 67%
Level 2: 60%+
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