1. In Masson's trichrome staining method, collagen appears
A Red
B yellow
C blue
D black
E None of the above
Correct Answer C
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2. In viral infections, eosinophilic intracytoplasmic inclusion bodies are classically associated with:
A Rabies
B Canine distemper
C Adenovirus infection
D Feline leukemia virus infection
E None of the above
Correct Answer A
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3. The phenomenon of staining tissues different from the original color of the stain is termed as
A orthochromasia
B metachromasia
C polychromasia
D euchromasia
E None of the above
Correct Answer B
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4. Which oncogene is derived from a normal cellular proto-oncogene after mutation or overexpression?
A p53
B Rb gene
C ras
D BRCA-1
E None of the above
Correct Answer C
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5. In immunohistochemistry, the primary purpose of antigen retrieval is to:
A Remove hematoxylin stain completely
B Enhance tissue dehydration
C Unmask antigenic epitopes altered by formalin fixation
D Prevent paraffin embedding artifacts
E None of the above
Correct Answer C
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6. Which renal lesion is characterized by leakage of plasma proteins into Bowman's space due to glomerular basement membrane injury?
A Pyelonephritis
B Tubular necrosis
C Glomerulonephritis
D Hydronephrosis
E None of the above
Correct Answer C
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7. The most common paraneoplastic syndrome associated with lymphoma in dogs, is
A hypercalcemia
B hypoglycemia
C polycythemia
D hypocalcemia
E None of the above
Correct Answer A
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8. Which biomarker is considered most specific for myocardial injury in animals?
A Creatine kinase
B Aspartate aminotransferase
C Cardiac troponin I
D Lactate dehydrogenase
E None of the above
Correct Answer C
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9. Caseous necrosis is classically associated with which type of inflammatory response?
A Suppurative inflammation
B Granulomatous inflammation
C Serous inflammation
D Fibrinous inflammation
E None of the above
Correct Answer B
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10. Which of the following statements about tumour metastasis is incorrect?
A Metastasis is the spread of tumour cells from their primary location to distant sites in the body.
B Metastasis is the major cause of cancer-related deaths
C The secondary site colonized by metastatic cells is always close to the site of the primary tumor
D The tumor microenvironment plays a critical role in metastatic spread
E None of the above
Correct Answer C
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11. The cationic protein present in eosinophils that is cytotoxic to parasites is
A Major basic protein
B Pattern recognition protein
C lactoferrin
D defensins
E None of the above
Correct Answer A
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12. Fatty liver may result from defects in any one of the events, except
A decreased apoprotein synthesis
B decreased oxidation of FFA
C decreased phospholipid synthesis
D decreased alpha-glycerophosphate
E None of the above
Correct Answer D
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13. Intra cellular pathogens within macrophages are killed more readily in the presence of
A kinins
B properdins
C gamma interferon
D antibody
E None of the above
Correct Answer C
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14. Who became the youngest and fastest swimmer to cross the Palk Strait from Sri Lanka to India in April 2026?
A Aman Kumar Jaiswal
B Ishank Singh
C Bajrang Kumar
D Rajat Verma
E None of the above
Correct Answer B
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15. Which district was officially designated as India's first and only pearl farming cluster in May 2026?
A Ranchi
B Dhanbad
C Hazaribag
D Bokaro
E None of the above
Correct Answer C
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