Which of the following should be chosen for the best yield if one were to produce a recombinant protein in large amounts?
| 1. | Laboratory flask of the largest capacity |
| 2. | A stirred-tank bioreactor without in-lets and out-lets |
| 3. | A continuous culture system |
| 4. | Any of the above |
| I: | This stage is after the biosynthetic stage. |
| II: | The processes include separation and purification. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |