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61. Which of the following are true? a) Resolution power of unaided human eye is 100 μm b) Highest resolution is obtained with short wave light c) Dark field microscope is most useful for viewing living cells d) Chromatography is the method of separation of molecular components present in cytosol e) In gel filtration chromatography, molecules can be separated in pictogram to nanogram quantities
A. a, b and d
B. a, c and d
C. b and d
D. c and e
Explanation:
62. In which technique, filter for UV radiations is provided for protecting eyes
A. Phase contrast microscopy
B. Dark field microscopy
C. Fluorescent microscopy
D. Electron microscopy
Explanation:
63. Path of carbon assimilation can be traced with the help of
A. Chromatography
B. Electrophoresis
C. Radioisotopes
D. Fractionation
Explanation:
64. Iodine test detects
A. Fat
B. Starch
C. Protein
D. Malaria parasite
Explanation:
65. Resolving power of light microscope is
A. 0.2 μm or 0.002 mm
B. 2 μm or 0.02 mm
C. 0.02 μm or 0.0002 mm
D. 100 μm or 0.1 mm
Explanation:
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