Match separation methods in Group I with associated properties in Group II.
| Group I | Group II |
| P. Centrifugation | 1. Density |
| Q. Dialysis | 2. Diffusivity |
| R. Solvent extraction | 3. Size |
| S. Ultrafiltration | 4. Solubility |
A. P-4, Q-2, R-1, S-3
B. P-3, Q-1, R-2, S-4
C. P-1, Q-3, R-2, S-4
D. P-1, Q-2, R-4, S-3
Answer: Option D
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Which of the following techniques is best suited for immobilizing an affinity ligand?
A. Physical adsorption
B. Gel entrapment
C. Crosslinking with a polymer
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Which one of the following can not be a limiting substrate if Monod's growth kinetics is applicable?
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A. P-2, Q-3, R-1, S-4
B. P-1, Q-2, R-4, S-3
C. P-3, Q-2, R-4, S-1
D. P-3, Q-4, R-2, S-1

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