Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part4 : 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.X-ray crystallography is useful in the study of |
| Lipid structure |
| Three dimensional structure of proteins |
| Arrangement of proteins |
| Composition of nucleic acids and proteins |
17.The scientist who developed cytochemical technique for identification of DNA was |
| Mc Clintock |
| Abbe |
| Fuelgen and Rossenbeck |
| Waldeyer |
18.Method of chromatography used in determining molecular weight of proteins is |
| Adsorption chromatography |
| Gel fractionation chromatography |
| Affinity chromatography |
| Thin layer chromatography |
19.A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is |
| Phase-contrast microscope |
| X-ray microscope |
| Cell fractionation |
| Scanning electron microscope |
20.Stationary phase of adsorption/column chromatography is |
| Charcoal |
| Silica or alumina |
| Calcium carbonate or magnesium oxide |
| All the above |
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