Q. No.The complex formed by a pair of synapsed homologous chromosomes is called
| 1. | Equatorial plate | 2. | Kinetochore |
| 3. | Bivalent | 4. | Axoneme |
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) |
Match the following with respect to meiosis:
| (a) | Zygotene | (i) | Terminalization |
| (b) | Pachytene | (ii) | Chiasmata |
| (c) | Diplotene | (iii) | Crossing over |
| (d) | Diakinesis | (iv) | Synapsis |
Select the correct option from the following:
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (ii) | (iv) | (iii) | (i) |
| 4. | (iii) | (iv) | (i) | (ii) |
Amount of cellular DNA increases during:
| 1. | Cytokinesis | 2. | Fertilisation |
| 3. | Mutation | 4. | Respiration |
What is correct?
| 1. | DNA content becomes double during G1- phase |
| 2. | Duration of interphase is short as compared to M-phase |
| 3. | G2-phase follows mitotic phase |
| 4. | DNA-replication occurs in S-phase |
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?
 |
|
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, 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 G0. This process occurs at the end of:
| 1. | G1 phase | 2. | S phase |
| 3. | G2 phase | 4. | M phase |
Match the following events that occur in their respective phases of cell cycle and select the correct option
| (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 |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (i) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
| 1. | Disappearance of nucleolus | 2. | Chromosome movement |
| 3. | Synapsis | 4. | Spindle fibres |
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