Difference between eukaryotes and prokaryotes is in:
| 1. | Circular ss DNA in prokaryotes |
| 2. | Histone with prokaryotic DNA |
| 3. | Operon in eukaryotes |
| 4. | Membrane bound organelles in eukaryotes |
The main arena of various types of activities of a cell is:
| 1. | Plasma membrane | 2. | Mitochondria |
| 3. | Cytoplasm | 4. | Nucleus |
Different cells have different sizes. Given are the following cells:
| I. | Mycoplasma |
| II. | Ostrich eggs |
| III. | Human RBC |
| IV. | Bacteria |
The correct ascending order of the size of the cells given above will be:
| 1. | I, IV, III, II | 2. | I, I, III, IV |
| 3. | II, I, III, IV | 4. | III, II, I, IV |