Q. No.
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Which of the events listed below is not observed during mitosis?
1. Chromatin condensation
2. Movement of centrioles to opposite poles
3. Appearance of chromosomes with two chromattids joined together at the centromere
4. Crossing over
Identify the wrong statement about meiosis
1. Pairing of homologues chromosomes
2. Four haploid cells are formed
3. At the end of meiosis the number of chromosomes are reduced to half
4. Two cycle of DNA replication occurs
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
In bacteria the cell cycle is divided into:
1. Only 1 phase
2. Two stages
3. Three periods
4. Four classes
The G0 stage of the cell cycle is irreversible in:
I. Quiescent cells
II. Senescent cells
III. Terminally differentiated cells
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
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If a cell in S phase is fused with a cell in G1:
1. The G1 nucleus immediately enters the S phase
2. The S nucleus stops DNA replication
3. The G1 nucleus directly enters G2 phase
4. Both nuclei enter the M phase immediately
A point in the animal cell cycle, at which the cell becomes "committed" to the cell cycle, occurs in:
| 1. | G1 phase | 2. | S phase |
| 3. | G2 phase | 4. | M phase |
During what phase in the cell cycle would you find the most DNA per cell?
| 1. G1 | 2. G2 |
| 3. S | 4. Prophase II |
The phase of the cell cycle that is expected to be the most variable in duration in different types of cells in an animal will be:
| 1. G1 | 2. S |
| 3. G2 | 4. M |
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