Microbiology Mcqs

Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as______________?

• (A)  Active acquired immunity
• (B)  Passive acquired immunity
• (C)  Natural active immunity
• (D)  Passive natural immunity

Answer

Submitted By :Ali Uppal

Active artificial immunization is induced by the administration of all of the following EXCEPT______________?

• (A)  Bacterial products
• (B)  Toxoids
• (C)  Vaccines
• (D)  Antitoxins

Answer

Submitted By :Ali Uppal

Type I hypersensitivity is mediated by which of the following immunoglobulins ?

• (A)  IgA
• (B)  IgG
• (C)  IgM
• (D)  IgE

Answer

Submitted By :Ali Uppal

A woman with infertility receives an ovary transplant from her sister who is an identical Twin. What type of graft it is ?

• (A)  Xenograft
• (B)  Autograft
• (C)  Allograft
• (D)  Isograft

Answer

Submitted By :Ali Uppal

Cold sterilization refers to the process of sterilization by use of______________?

• (A)  Ultra violet rays
• (B)  Ultrasonic vibrations
• (C)  Infrared rays
• (D)  Gamma rays

Answer

Submitted By :Ali Uppal

The prototype of Type II hypersensitivity reaction is__________________?

• (A)  Arthus reaction
• (B)  SLE
• (C)  Auto immune hemolytic anemia
• (D)  Contact dermatitis

Answer

Submitted By :Ali Uppal

Flash pasteurization of milk is done at what temperature______________?

• (A)  125°C for new seconds
• (B)  60°C for 15 minutes
• (C)  72°C for 5 minutes
• (D)  72° for 15 – 20 Sec

Answer

Submitted By :Ali Uppal

Spores are disinfected by_______________?

• (A)  Glutaraldehyde
• (B)  Betapropiolactone
• (C)  Formaldehyde
• (D)  Hexachlorophen
• (E)  Both A & C

Answer

Submitted By :Ali Uppal

Most of the drug resistances occurs due to_____________?

• (A)  Transduction
• (B)  Transformation
• (C)  Mutation
• (D)  conjugation

Answer

Submitted By :Ali Uppal

Endotoxins are produced by________________?

• (A)  Fungi
• (B)  Gram +ve bacteria
• (C)  Virus
• (D)  Gram -ve bacteria

Answer

Submitted By :Ali Uppal