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 […]
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IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Linnaean Classification Hierarchy
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, […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Effects of Hyperventilation on Arterial Blood
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 […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Class II MHC Molecules Are Not Expressed by T Cells
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, muscles, and other organs. Reason [r]: The blood is pumped a second time after it loses pressure in the capillary beds of the lungs or skin. (A) Both [a] and [r] are true and [r] is the correct reason for [a] (B) Both [a] and [r] are true but [r] is not the correct reason for [a] (C) Both [a] and [r] are false (D) [a] is true but [r] is false](https://www.letstalkacademy.com/wp-content/uploads/2026/06/1-9-1.jpg)
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Double Circulation in Humans
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, […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
J Chain in Immunoglobulins
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 […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Distal Convoluted Tubule Follows the Ascending Limb
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 […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Calcium Wave After Fertilization in Sea Urchin
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 […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Toll-Like Receptors (TLRs) in Innate Immunity
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 […]
IIT JAM Biotechnology Previous Year Question paper Topic Animal biology
Molecular Weight of Human IgG – Immunoglobulin Structure
4. When the molecular weight of human immunoglobulin light chain is 24 kDa, the total molecular weight of human IgG is _____ kDa. Molecular Weight of Human IgG Introduction Immunoglobulins, […]
