- A. dna
- B. Ribosome
- C. Mitochondria
- D. Cell wall
General Microbiology
-
Bacterial cell does not possess___________________?
-
Post streptococcal acute glomerulo nephritis is an example of________________?
- A. Type I hypersensitivity
- B. Type II hypersensitivity
- C. Type III hypersensitivity
- D. Type IV hypersensitivity
-
The term epitope refers to________________?
- A. complete antigen molecule
- B. Hapten
- C. Immunogen
- D. Smallest antigenic determinant
-
The Process of attenuation can be achieved by all except___________________?
- A. Growing bacteria in adverse environment
- B. Growing bacteria in unconventional host
- C. Serial passage in an experimental host
- D. Repeated cultures in artificial media
-
Cold sterilization refers to the process of sterilization by use of____________________?
- A. Ultra violet rays
- B. Ultrasonic vibrations
- C. Infrared rays
- D. Gamma rays
-
Which of the following organisms does NOT react with gram’s stain ?
- A. Actinomyces israelii
- B. Candida albicans
- C. Mycobacterium tuberculosis
- D. Streptococcus mutan
-
Phase contrast microscopy is based on principle of__________________?
- A. Different refractive indices of object
- B. Different reflective indices of object
- C. Light scattering
- D. Light attenuation
-
The key cell types involved in the acquired immunity include all EXCEPT________________?
- A. B lymphocytes
- B. Erythrocytes
- C. T lymphocytes
- D. Antigen presenting cells (APC
-
Sterilization is a process in which_________________?
- A. Kill all pathogenic micro-organisms
- B. Kill all non-pathogenic micro-organisms in the environment
- C. Deactivate all pathogens not spores
- D. Deactivate all spores and dill pathogenic organism
-
Complement factor through which common pathway begins___________________?
- A. C3
- B. C5
- C. C2
- D. Protein B