Tools Techniques - Questions & Answers | Exam2Win

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6. X-ray crystallography is useful in the study of

A. Lipid structure

B. Three dimensional structure of proteins

C. Arrangement of proteins

D. Composition of nucleic acids and proteins

Explanation:

7. The scientist who developed cytochemical technique for identification of DNA was

A. Mc Clintock

B. Abbe

C. Fuelgen and Rossenbeck

D. Waldeyer

Explanation:

8. Method of chromatography used in determining molecular weight of proteins is

A. Adsorption chromatography

B. Gel fractionation chromatography

C. Affinity chromatography

D. Thin layer chromatography

Explanation:

9. A student wants to study metaphasic behavior of chromosomes in a living cell. The technique most suitable is

A. Phase-contrast microscope

B. X-ray microscope

C. Cell fractionation

D. Scanning electron microscope

Explanation:

10. Stationary phase of adsorption/column chromatography is

A. Charcoal

B. Silica or alumina

C. Calcium carbonate or magnesium oxide

D. All the above

Explanation: