BT102 Final Term Quiz 2 July 2023 by Miss Mehwish

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Q1. Proteins from microbes are separated by:

1. Northern blotting
2. Western blotting
3. SDS-PAGE
4. Gel electrophoresis

Correct option: d) Gel electrophoresis

Q2. Which of the following is the moist heat sterilization?

1. Pasteurization
2. All of the given options
3. Boiling
4. Autoclaving

Correct option: d) Autoclaving

Q3. Phenol and phenolic compounds are first widely used antiseptics for the disruption of:

1. Vitamins
2. Plasma membrane
3. Hormones
4. DNA

Correct option: b) Plasma membrane

Q4. ________ is the transfer of DNA by a virus called bacteriophages.

1. Transduction
2. Conjugation
3. Transfection
4. Transformation

Correct option: a) Transduction

Q5. Alcohols _____ proteins and dissolve lipids.

1. Denature
2. Deplete
3. Dry
4. Diminish

Correct option: a) Denature

Q6. Which of the following is used as an antimicrobial agent?

1. Silver nitrate
2. Isopropanol
3. Ethanol
4. All of the given options

Correct option: d) All of the given options

Q7. The halogen that alters protein synthesis and membranes is ______.

1. Chlorine
2. HCl
3. Iodine
4. HOCl

Correct option: c) Iodine

Q8. The antibiotic that prevents the spoilage of cheese is ______.

1. Natamycin
2. Streptomycin
3. Clindamycin
4. Omeprazole

Correct option: a) Natamycin

Q9. Phenol and phenolic compounds are first widely used antiseptics for the disruption of:

1. Plasma membrane
2. Vitamins
3. DNA
4. Hormones

Correct option: a) Plasma membrane

Q10. Which of the following is not a characteristic of an ideal chemical?

1. Non-toxic to body tissues
2. High temperature
3. Broad spectrum activity
4. Effective at low concentration

Correct option: b) High temperature