Q. No.Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:
1.
Anaphase
2.
Telophase
3.
Prophase
4.
Metaphase
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) |
Which of the following stages of meiosis involves division of centromere?
1. Anaphase II
2. Telophase II
3. Metaphase I
4. Metaphase II
Match List-I with List-II
| List-I | List-II | ||
| (a) | S phase | i. | Proteins are synthesized |
| (b) | G2 phase | ii. | Inactive phase |
| (c) | Quiescent stage | iii. | Interval between mitosis and initiation of DNA replication |
| (d) | G1 phase | iv. | DNA replication |
Choose the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | iv | i | ii | iii |
| 2. | ii | iv | iii | i |
| 3. | iii | ii | i | iv |
| 4. | iv | ii | iii | i |
Which stage of meiotic prophase shows terminalisation of chiasmata as its distincitve feature?
1. Diakinesis
2. Pachytene
3. Leptotene
4. Zygotene
The fruit fly has 8 chromosomes (2n) in each cell. During the interphase of mitosis, if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after the S phase?
| 1. | 4 | 2. | 32 |
| 3. | 8 | 4. | 16 |
Reduction in the number of chromosomes occurs during
1. Diplotene
2. Diakinesis
3. Metaphase I
4. Anaphase I
Does Tubulin protein synthesis take place in which of the given stages of interphase?
1. G1
2. G0
3. S
4. G2
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