A. Different refractive indices of object
B. Different reflective indices of object
C. Light scattering
D. Light attenuation
Related Mcqs:
- Dark ground microscopy is useful to identify______________?
A. Mycoplasma
B. Chlamydiae
C. Rickettsiae
D. Spirochaetes - 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 - 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 - 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 - 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 - Wasserman test test is diagnostic of__________________?
A. Syphilis
B. Gonorrhea
C. TB
D. Tyhoid - 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 - Negative phase is seen in ________ immunity?
A. Active
B. Passive
C. Herd
D. Local - Gingiva are enlarged in leukemia because of__________________?
A. Capillary dilation
B. Erythrocyte engorgement
C. Edema
D. WBC infiltration - Patient suffering form Eagle’s syndrome complains of__________________?
A. burning sensations in mouth
B. excessive salivation
C. Glossodynia
D. Dysphagia
