| 1. | 9 + 2 arrangement of microtubules |
| 2. | 9 peripheral doublet microtubules |
| 3. | 2 centrally located microtubules |
| 4. | An organisation like the cartwheel |
| 1. | Inner membrane is smooth |
| 2. | Cytoplasmic surface of nuclear envelope may bear ribosomes |
| 3. | Outer membrane bears 70S ribosomes |
| 4. | Perinuclear space is 10 to 50 nm |
| 1. | Primary constriction |
| 2. | Secondary constriction |
| 3. | Satellite |
| 4. | More than one option is correct |