Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part4 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.Beads of negative and positive charges used in ion exchange chromatography are of |
| Cellulose |
| Silica |
| Alumina |
| All the above |
12.Electron microscope employs |
| Fluorochromes |
| Polarizer and analyser filters |
| Objective and ocular lenses |
| Electromagnetic lenses |
13.Isopyknic or equal density centrifugation is achieved in |
| Buoyant density centrifugation |
| Density gradient centrifugation |
| Electrophoresis |
| Differential centrifugation |
14.Electric field is used in separating chemicals in |
| Ion exchange chromatography |
| Electrophoresis |
| Thin layer chromatography |
| Column chromatography |
15.Dye which cannot stain chromatin is |
| Crystal violet |
| Fuelgen stain |
| Haematoxylin |
| Carmine |
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