Cell growth is a continuous process in terms of
| 1. | Increase in protein content |
| 2. | Increase in DNA content |
| 3. | Increase in cytoplasmic content |
| 4. | Increase in RNA content |
| 1. | cytokinesis. | 2. | cytomeiosis. |
| 3. | cytoplasmosis. | 4. | cytomitosis. |
| 1. | Plant cells do not undergo cytokinesis. |
| 2. | Animal cells use a cell plate mechanism, while plant cells use a cleavage furrow. |
| 3. | Plant cells form a cell plate that develops into a new cell wall, whereas animal cells constrict the cytoplasm through a cleavage furrow. |
| 4. | Animal cells form a cell plate, while plant cells divide the cytoplasm by multiple fission. |
The simple precursor of cell wall in plant cell is
| 1. | Cell plate |
| 2. | Cell sap |
| 3. | Cell membrane |
| 4. | Cytosol |
The furrow gradually deepens and ultimately joins in the centre dividing the cell cytoplasm into two.
Here, the cell is
1. Animal cell
2. Plant cell
3. Both A and B
4. Only Root tip cells
| Statement 1: | Mitosis is crucial for growth and development in multicellular organisms, as it produces genetically identical cells that contribute to tissue formation and repair. |
| Statement 2: | Mitosis introduces genetic variability within the cell population of an organism, which is essential for adapting to environmental changes. |
| 1. | Both statements are True and statement 2 is the correct explanation of statement 1. |
| 2. | Both statements are True but statement 2 is not the correct explanation of statement 1. |
| 3. | Statement 1 is true but statement 2 is False. |
| 4. | Both statements are false. |
Which of the events listed below is not observed during mitosis?
| 1. | Chromatin condensation |
| 2. | Movement of centrioles to opposite poles |
| 3. | Appearance of chromosomes with two chromosomes joined together at the centromere |
| 4. | Crossing over |
Liquid endosperm in coconut results due to :
| 1. | Karyokinesis followed by cytokinesis |
| 2. | Failure of karyokinessis followed by cytokinesis |
| 3. | Karyokinesis twice followed by single cytokinesis |
| 4. | Karyokinesis is not followed by cytokinesis |