1. Which is mordant in Grams staining ?
A) Crystal Violet B) Safranin C) Alcohol D)
Iodine
2. The immersion oil used in microscopy will
A) Decrease the numerical aperture
B) Increase
the refractive index
C) Decrease the refractive index
D) None of the above
3. Aflatoxins are
A) Produced by certain fungi
B) Cancer causing
agent
C) Causes immunosuppression
D) All the above
4. Botulinum toxins are
A) Neurotoxic
B) Teratogen
C) Carcinogenic
D)
Mutagen
5. MSA (Mannitol Salt Agar) is generally used
for the detection of
A) E. Coli
B) Staphylococcus aureus
C) Bacillus sp.
D) Aspergillus nigerum
6. Rotating Biological contactors are
employed
A) Primary treatment of waste water
B) Secondary treatment of waste water
C) RBC isolation
D) Solid waste management
7. This is not a method of enzyme
immobilization
A) Encapsulation
B) Adsorption
C) Nanomaterial immobilization
D) PAGE
Answers
Learn more:
1. D) Iodine
2. B) Increase the refractive index (MCQ Microscopy)
3. D) All the above
4. A) Neurotoxic
5. B) Staphylococcus aureus
6. B) Secondary treatment of waste water
7. D) PAGE