Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part2 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.Which one combination of eye piece and objective would have widest field |
| 5X, 5X |
| 5X, 10 X |
| 10 X, 45 X |
| 10 X, 100 X |
17.Details of mitochondrial structure could be studied only after the discovery of |
| Oil immersion lens |
| Fluorescent microscope |
| Electron microscope |
| All the above |
18.Fluorescent microscope employs |
| UV rays |
| Polarised light |
| Beam of electrons |
| Both A and B |
19.Schiff’s reagent is specific for |
| Cytoplasm |
| DNA |
| Pectin |
| Suberin |
20.A scientist wants to study the structure of a protein. What technique would be useful |
| Electrophoresis |
| X-ray crystallography |
| Density gradient centrifugation |
| Microspectrophotometry |
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