Q. No.During Meiosis 1, in which stage synapsis takes place?
1.
Pachytene
2.
Zygotene
3.
Diplotene
4.
Leptotene
Match the following events that occur in their respective phases of cell cycle and select the correct option:
| Column I | Column II | ||
| (a) | G1 phase | (i) | Cell grows and organelle duplication |
| (b) | S phase | (ii) | DNA replication and chromosome duplication |
| (c) | G2 phase | (iii) | Cytoplasmic growth |
| (d) | Metaphase in M-phase | (iv) | Alignment of chromosomes |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (i) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (iii) | (ii) | (i) | (iv) |
Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:
| 1. | Anaphase | 2. | Telophase |
| 3. | Prophase | 4. | Metaphase |
Which stage of meiotic prophase shows terminalisation of chiasmata as its distincitve feature?
1. Diakinesis
2. Pachytene
3. Leptotene
4. Zygotene
1. 4
2. 32
3. 8
4. 16
Match the following with respect to meiosis:
| Column-I | Column-II | ||
| (a) | Zygotene | (i) | Terminalization |
| (b) | Pachytene | (ii) | Chiasmata |
| (c) | Diplotene | (iii) | Crossing over |
| (d) | Diakinesis | (iv) | Synapsis |
Select the correct option from the following:
| Options: | (a) | (b) | (c) | (d) |
| 1. | iv | iii | ii | i |
| 2. | i | ii | iv | iii |
| 3. | ii | iv | iii | i |
| 4. | iii | iv | i | ii |
Dissolution of the synaptonemal complex occurs during :
| 1. | Zygote | 2. | Diplotene |
| 3. | Leptotene | 4. | Pachytene |
Identify the correct statement with regard to phase (Gap 1) of interphase:
| 1. | The reorganisation of all cell components takes place. |
| 2. | The cell is metabolically active and grows but does not replicate its DNA |
| 3. | Nuclear division takes place |
| 4. | DNA synthesis or replication takes place. |
Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage . This process occurs at the end of:
1.
2. S phase
3.
4. M phase
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