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14. Which one of the following is NOT used as a component in subunit vaccines? (A) Capsular polysaccharide (B) Inactivated exotoxin (C) Inactivated virus (D) Viral glycoprotein Subunit Vaccines Do […]

13. Which one of the following statements about polyploidy is correct? (A) Autopolyploids are derived from a single species (B) Autopolyploids are derived from two different species (C) Allopolyploids are […]

12. The correct hierarchy of taxa in the Linnaean classification of eukaryotes is (A) kingdom, class, phylum, order, family, genus (B) kingdom, order, class, phylum, family, genus (C) kingdom, phylum, […]

11. Hyperventilation (breathing rapidly and deeply) causes which of the following event(s) in the arterial blood? (A) Decrease in CO₂ concentration (B) Decrease in proton concentration (C) Increase in pH […]

10. Class II MHC molecules are NOT expressed by (A) B-cells (B) dendritic cells (C) macrophages (D) T-cells Class II MHC Molecules Are Not Expressed by T Cells Introduction The […]

9. Determine the correctness or otherwise of the following Assertion [a] and Reason [r]. Assertion [a]: The cardiovascular organization called double circulation provides vigorous flow of blood to the brain, […]

8. Which one of the following pairs of antibodies contains ‘J-chain’ in their multimeric form?  (A) IgA and IgE (B) IgA and IgM (C) IgD and IgE (D) IgD and […]

7. In a nephron, _____ follows the ascending limb of the “loop of Henle”. (A) Descending limb (B) Distal tubule (C) Collecting tubule (D) Proximal tubule Distal Convoluted Tubule Follows […]

6. A rise in cytosolic calcium ion concentration just after fertilization in a sea urchin egg leads to (A) Formation of fertilization envelope (B) Acrosomal reaction (C) Formation of vegetal […]

5. Which of the following is involved in innate immune response in higher mammals? (A) T cell antigen receptor (B) B cell antigen receptor (C) Toll-like receptor (D) Major histocompatibility […]