Tools Techniques - Questions & Answers | Exam2Win

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56. Pure fractions of cellular components are isolated by

A. Chromatography

B. Differential centrifugation

C. Scanning electron microscopy

D. X-ray diffraction

Explanation:

57. Lenses used in ultraviolet microscope are

A. Glass lenses

B. Quartz fluorite

C. Lithium fluoride

D. Both B and C

Explanation:

58. Which one is not radioactive?

A. ¹⁴C

B. ³H

C. ¹⁸O

D. ³²P

Explanation:

59. Metachromasia is

A. Behaviour of cell

B. Development of scientific attitude

C. Behaviour of chromosomes at metaphase

D. Staining that gives different colour

Explanation:

60. Distribution of two or more specific molecules within a cell is studied by

A. Fluorescent microscope

B. Dark field microscope

C. Bright field microscope

D. Phase contrast microscope

Explanation: