Q. No.Given below is a schematic break-up of the phases/stages of cell cycle-
Which one of the following is the correct indication of the stage/phase in the cell cycle?
1.
B-Metaphase
2.
C-Karyokinesis
3.
D-Synthetic phase
4.
A-Cytokinesis
Which one of the following is the correct indication of the stage/phase in the cell cycle?
Synapsis occurs between:
| 1. | a male and a female gamete |
| 2. | mRNA and ribosomes |
| 3. | spindle fibres and centromere |
| 4. | two homologous chromosomes |
Which stages of cell division do the following figures A and B represent respectively?
| 1. | Metaphase- Telophase | 2. | Telophase- Metaphase |
| 3. | Late anaphase- Prophase | 4. | Prophase- Anaphase |
During mitosis ER and nucleolus begin to disappear at:
| 1. | late prophase |
| 2. | early metaphase |
| 3. | late metaphase |
| 4. | early prophase |
| 1. | Chromatids start moving towards opposite poles in telophase. |
| 2. | Golgi complex and endoplasmic reticulum are still visible at the end of prophase. |
| 3. | Chromosomes move to the spindle equator and get aligned along the equatorial plate in metaphase. |
| 4. | Chromatids separate but remain in the center of the cell in anaphase. |
Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? 
1. Prophase-I during meiosis
2. Prophase-II during meiosis
3. Prophase of mitosis
4. Both prophase and metaphase of mitosis
During gamete formation, the enzyme recombinase participates during:
1. Metaphase-I
2. Anaphase-II
3. Prophase-I
4. Prophase-II
The complex formed by a pair of synapsed homologous chromosomes is called:
1. Kinetochore
2. Bivalent
3. Axoneme
4. Equatorial plate
The enzyme recombinase is required at which stage of meiosis:
| 1. | Pachytene | 2. | Zygotene |
| 3. | Diplotene | 4. | Diakinesis |
In the 'S' phase of the cell cycle:
| 1. | amount of DNA doubles in each cell. |
| 2. | amount of DNA remains the same in each cell |
| 3. | chromosome number is increased |
| 4. | amount of DNA is reduced to half in each cell. |
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