The motion of sister Chromatids toward opposite poles of the cell occurs by
1. | Shortening of microtubules attached to centromere |
2. | Shortening of microtubules attached to kinetochores |
3. | Shortening of microtubules attached to Metaphase plate |
4. | Shortening of microtubules attached to other homologous chromosomes |
Tetrad of cells is a result of
1. Meiosis I
2. Meiosis II
3. Mitosis
4. Prophase II
How many tetrads are found in meiotic Prophase in an organism with a diploid number of 12?
1. | 6 | 2. | 18 |
3. | 24 | 4. | 12 |
A particular cell has half as much DNA as some of the other cells in a mitotically active tissue, the cell most likely be in
1. | G1 | 2. | G2 |
3. | Prophase | 4. | Anaphase |
Fruit flies have a diploid number of chromosomes of eight, how many chromosomes will be there in the tetrad of cells?
1. | 4 | 2. | 8 |
3. | 16 | 4. | Both A and B |
Which of the following events occur first in Meiosis?
1. | Terminalisation | 2. | Crossing over |
3. | Disjunction | 4. | Synapsis |
Which of the following events occurs in the end, in Meiosis?
1. | Terminalisation | 2. | Crossing over |
3. | Disjunction | 4. | Synapsis |
The number of chromosomes becomes half at which of the following stages?
1. | Synapsis of chromosomes |
2. | Crossing over between chromosomes |
3. | Terminalisation of chromosomes |
4. | Disjunction of chromosomes |
The cell plate is laid during
1. Metaphase
2. Interphase
3. Cytokinesis
4. Telophase
If at the end of meiosis a cell has 12 chromosomes, then how many chromosomes will be there in G2 phase?
1. 12
2. 24
3. 6
4. Cannot be predicted