Top Microbiology Objective Questions

1) Regarding serratus anterior muscle which is incorrect?

A. Multipinnate muscle
B. Lifts arm above the shoulder
C. Supplied by long thoracic nerve
D. Originates from lower eight ribs

Ans: D

2) The treatment of choice for atticoantral variety of chronic suppurative otitis media is:

A. Mastoidectomy
B. Medical management
C. Underlay myringoplasty
D. Insertion of ventilation tube

Ans:A

3) All of the following are the complications in the new born of a diabetic mother except?

A. Hyperbilirubinemia
B. Hyperglycemia
C. Hypocalcemia
D. Hypomagnesemia

Ans:B

4) The correct line of management in child who has swallowed a coin is?

A. Fiber optic endoscopy
B. Rigid endoscopy
C. Laparotomy
D. Wait and Watch

Ans: D

5)Helper cells belong to?

A. T cells
B. Macrophages
C. B cells
D. Monocytes

Ans:A

6)Mac Ewen’s triangle can be felt through the?

A. Superior conchae
B. Cymba conchae
C. Middle conchae
D. Posterior part of auricle

Ans:B

7)Most common strain of E.coil giving rise to traveller’s diarrhoea is?

A. Entero-invasive E.coil
B. Entero-pathogenic E.coil
C. Entero-toxigenic E.coil
D. Entero-aggregative E.coil

Ans:C

8)With urine turning green on ferric chloride test, the diagnosis is:

A. Phenylketonuria
B. Alkaptonuria
C. Multiple carboxylase deficiency
D. Glutaric aciduria

Ans:A

9)For assessing the ability of protein utilisation the best index is?

A. Urea
B. Uric acid
C. Blood ammonia
D. Urinary nitrogen content

Ans:D

10)Screening test is not useful when?

A. Incidence of the disease
B. Incidence is low in the community
C. Early detection leads to favorable outcome
D. The disease has a lead time

Ans:B

11)Nerve not related to humerus is?

A. Radial
B. Median
C. Axillary
D. Musculocutaneous

Ans:D

12)What is the percentage of chances of hydatidiform mole to develop choriocarcinoma?

A. 5%
B. 15%
C. 50%
D. 80%

Ans:B

13)Vasomotor reversal of Dale is because of?

A. Block of alpha receptors
B. Block of alpha & beta receptors
C. Agonistic action on alpha receptors
D. Adrenaline only

Ans:A

14)Primary visual field is situated around the ______ sulcus?

A. Central
B. Calcarine
C. Superior temporal
D. Inferior occipital

Ans:B

15)Medical treatment for BPH includes?

A. Finesteride
B. Methyl testosterone
C. Oestrogens
D. Osmic acid

Ans:A

16)Anterior dislocation of shoulder causes all except?

A. Circumflex artery injury
B. Avascular necrosis head of humerous
C. Brachial plexus injury
D. Chip fracture scapula

Ans:D

17)HIV is a?

A. Retrovirus
B. Flavivirus
C. Oncovirus
D. Arbovirus

Ans:A

18)In shigella dysentery associated hemolytic uremic syndrome, the false statement is?

A. Leucocytosis
B. Neurological abnormalities
C. Hepatic failure
D. Thrombotic angiopathy

Ans:C

19)Dengue hemorrhagic fever is caused by?

A. Type I secrotype
B. Re-infection with the same serotype of dengue virus
C. Re-infection with the different serotype of the dengue virus
D. Re-infection in immunocompromised host

Ans:C

20)When the sample size is less than 30, one of the following modifications is made in the formula of standard deviation?

A. Numerator is increased
B. Denominator is decreased
C. Both numerator and denominator are changed
D. Numerator is decreased

Ans:B

21)Oesophagus receives blood supply from all except?

A. Inferior thyroid artery
B. Inferior phrenic artery
C. Internal mammary artery
D. Bronchial artery

Ans:C

22)All are pencillinase resistant except?

A. Methicillin
B. Nafcillin
C. Penicillin
D. Dicioxacillin

Ans:C

23)Mild hemolyti anaemia is associated with vitamin.. . Deficiency?

A. B6
B. E
C. A
D. C

Ans:B

24)Trimethoprim acts by?

A. Inhibiting DHFR
B. Inhibiting cell metabolism
C. Inhibiting DNA
D. Inhibiting RNA

Ans:A

25)Paradoxically split second heart sound signifies severe?

A. Pulmonary stenosis
B. Mitral stenosis
C. aortic stenosis
D. tricuspid stenosis

Ans:C

26)Riboflavin nutritional status is assessed by?

A. Xanthine oxidase levels in RBC’s
B. Glutathione reductase activation in RBC’s
C. Urine excretion of Riboflavin
D. Cytochrome- C-reductase levels in kidneys

Ans:B

27)Provision of free medical care to the people at government expense is known as?

A. State medicine
B. Social therapy
C. Social medicine
D. Social insurance programme

Ans:A

28)Shortest sacrocotyloid diameter causing narrowing of pelvis is a feature of which type of maternal pelvis?

A. Android
B. Gynaecoid
C. Platypelloid
D. Anthropoid

Ans:C

29)What is Bennett’s fracture?

A. Fracture dislocation of base of first metacarpal
B. Fracture dislocation of base of first metatarsal
C. Fracture of first metatarsal
D. Fracture of first metacarpal

Ans:B

30)All the following techniques are helpful in the diagnosis of haemoglobinopathies, except?

A. Alkali denaturation test
B. Cellulose acetate electrophoric
C. Sickling test
D. Osmotic fragility test

Ans:D

31)Which of the following is not likely in patients taking amiodarone?

A. Pulmonary fibrosis
B. Hypothyroidism
C. Hyperthyroidism
D. Gynaecomastia

Ans:D

32)Which of the following helps in preventing colon cancer?

A. High fiber diet
B. Selenium
C. Antioxidants
D. Fatty food

Ans:A

33) Size of ovary, above which considered to be malignant?

A. 2 cm
B. 5 cm
C. 8 cm
D. 10 cm

34)Cadaveric spasm

A. Instant in onset
B. Confined to small group of muscles
C. Occurs only in voluntary muscles
D. All of the above

Ans:D

35)The radionuclide used for ventriculography is

A. Thallium
B. Technetium
C. Gallium
D. Pottasium

Ans:B

36)”Signet ring cells” are seen in?

A. Carcinoma cervix
B. Carcinoma endometrium
C. Krukkenberg tumour
D. Carcinoma vulva

Ans:C

37)Cimetidine was synthesized by?

A. Black
B. Upjohn
C. Lindsay
D. Lilly

Ans:A