Phase contrast microscopy is based on principle of__________________?

Related Mcqs:

1. Dark ground microscopy is useful to identify______________?

   A. Mycoplasma
   B. Chlamydiae
   C. Rickettsiae
   D. Spirochaetes

2. By using phase contrast microscope_______________?

   A. Internal structures are differentiated in living cells
   B. Internal structures are differentiated in dead cells
   C. Internal metabolic activities can be observed
   D. External capsule formation can be observed

3. Which of the following procedures is used as a routine technique in karyotyping using light microscopy ?

   A. G banding
   B. C banding
   C. Q banding
   D. Brd V-staining

4. Which of the following diseases of the bone characteristically exhibits (in contrast to the other three conditions) a single lesion in a single bone ?

   A. Central giant cell granuloma
   B. Osteopetrosis
   C. Paget’s disease of the bone
   D. Polyostotic fibrous dysplasia

5. Pap smear is used to detect dysplasia, carcinoma insitu and invasive carcinoma of uterine cervix. This is based on the principle of_______________?

   A. Neoplastic cells are cohesive
   B. Neoplastic cells are are non cohesive
   C. Hyper chromatic and pleomorphism of tumour cells
   D. All of the above

6. Wasserman test test is diagnostic of__________________?

   A. Syphilis
   B. Gonorrhea
   C. TB
   D. Tyhoid

7. Zero growth rate is observed during one of the phase of the bacterial growth curve______________?

   A. Lag
   B. Exponential growth
   C. Stationary phase
   D. Decline

8. Negative phase is seen in ________ immunity?

   A. Active
   B. Passive
   C. Herd
   D. Local

9. Gingiva are enlarged in leukemia because of__________________?

   A. Capillary dilation
   B. Erythrocyte engorgement
   C. Edema
   D. WBC infiltration

10. Patient suffering form Eagle’s syndrome complains of__________________?

    A. burning sensations in mouth
    B. excessive salivation
    C. Glossodynia
    D. Dysphagia