(A) Blood
(B) Bone marrow
(C) Skin
(D) Amniotic fluid
27. Anticoagulant of choice for chromosome analysis like Karyotyping :
(A) EDTA
(B) Heparin
(C) Sodium Citrate
(D) None of the above
28. Which type of chromosome abnormality is characteristically seen in Philadelphia chromosome ?
(A) Inversion
(B) Deletion
(C) Translocation
(D) None of the above
29. Which is the standard/Routine banding technique used in chromosome studies ?
(A) C-Banding
(B) R-Banding
(C) Q-Banding
(D) G-Banding
30. Which of the following techniques can be used in diagnosing haematological malignancy ?
(A) Flow cytometry
(B) Karyotypic analysis
(C) PCR-based assays
(D) All the above
31. Sterilisation techniques are first developed by :
(A) Paul Ehrlich
(B) Edward Jennar
(C) Robert Koch
(D) Louis Pasteur
32. The microscope which is used to visualize organisms which are live and unstained :
(A) Light microscope
(B) Dark field microscope
(C) Fluorescent microscope
(D) Scanning electron microscope
33. Holding period of Laboratory Autoclave :
(A) 160 degree for 1 hour
(B) 100 degree for 20 minutes
(C) 121 degree for 15 minutes, 15 lbs
(D) 85 degree for 30 minutes
34. Which of the following statement is false about receiving clinical specimens in laboratory ?
(A) Laboratory staff should be in gown and glove
(B) Laboratory staff should check whether samples are received in leak proof container
(C) Unlabelled specimens and wrongly labelled specimens can be accepted
(D) If sample is not sufficient for processing, the staff can ask for a repeat sample
35. Which statement is false regarding ionising radiation ?
(A) It has got a low penetrating power
(B) It is termed as cold sterilisation
(C) X-rays and gamma rays are lethal to DNAs
(D) Used for sterilising plastic items, syringes and catheters
36. All of the following tests are used for detecting efficacy of disinfectants except :
(A) Chick Martin test
(B) In-use test
(C) Kelsey-sykes test
(D) Serenys test
37. Isospora belong to which Sub-phylum ?
(A) Sub-phylum Sporozoa
(B) Sub-phylum Microspora
(C) Sub-phylum Ciliophora
(D) Sub-phylum Sarcomastigophora
38. All the following helminthic eggs are not bile stained except :
(A) Ancylostoma duodenale
(B) Enterobious vermicularis
(C) Ascaris lumbricoides
(D) Necator americanus
39. NIH swabs are used for collecting specimens in suspected cases of :
(A) Trichuriasis
(B) Ancylostomiasis
(C) Ascariasis
(D) Enterobiasis
40. Cryptosporidia oocysts are better stained and visualized by :
(A) Leishman stain
(B) Modified acid fast staining
(C) Ponder’s stain
(D) H and E stain
41. Which of the following is included in the laboratory diagnosis of Filariasis ?
(A) Demonstration of microfilaria in peripheral blood of patients
(B) Serological methods
(C) Imaging methods and molecular methods
(D) All of the above
42. The major complication of Falciparum malaria :
(A) Black water fever
(B) Cerebral malaria
(C) Algid malaria
(D) All of the above
43. Which of the following statement about bacterial capsule is incorrect ?
(A) Streptococcus pneumoniae has polysaccharide capsule
(B) Protects bacteria by inhibiting phagocytosis
(C) Can be demonstrated by negative staining in wet films by India ink method
(D) Helps in bacterial motility
44. Which is the surrogate marker for detection of methicillin resistance mediated by mec A gene in Staphylococcus Aureus by disc diffusion method ?
(A) Cefpodoxime
(B) Cefoxitin
(C) Optochin
(D) Bacitracin
45. All are correct about autoclave except :
(A) Used to sterilize surgical instruments in hospital
(B) Sterilizing conditions commonly used are temperature exposure of 121 degree C for 15 min at 15 pounds pressure
(C) Spores of Bacillus Atrophaeus is used as sterilization control
(D) Gravity displacement type is commonly used in laboratories
46. Which of the following is a selective medium for Salmonella Typhi ?
(A) Xylose lysine deoxycholate agar
(B) Alkaline bile salt agar
(C) Mannitol salt agar
(D) Thayer Martin medium
47. Which is not correct regarding oxidase test ?
(A) Used to identify bacteria which produce the enzyme cytochrome oxidase
(B) The test is performed on bacterial colonies from MacConkey’s agar
(C) Positive test is shown by purple color developing within 10 seconds
(D) Reagent used is 1% tetra-methyl-p-phenylenediamine dihydrochloride
48. Which of the following can be used to stain metachromatic granules of Corynebacterium diphtheriae?
(A) Albert’s stain
(B) Neisser’s stain
(C) Loeffler’s methylene blue
(D) All of the above
49. Which of the following cannot be cultivated in artificial culture media ?
(A) Cryptococcus neoformans
(B) Rhinosporidium seebri
(C) Blastomyces dermatitidis
(D) Sporothrix schenckii
50. All are true about Sabouraud’s dextrose agar except :
(A) pH of the medium is 8.6
(B) Growth of saprophytic fungi is prevented by adding cycloheximide
(C) Constituents are peptone, dextrose and agar
(D) Used for the isolation of pathogenic and non-pathogenic fungi
0 comments
Post a Comment