Q.61 Ten playing cards numbered 1, 2, 3, …., 10 are placed face down on a table. Onecard is drawn at random, its number recorded, and then replaced face down. […]
Tag: GATE Biotechnology Previous Year Papers with Solutions
Tag: GATE Biotechnology Previous Year Papers with Solutions
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Solving f(2)=5, f(x)f(x+1)=3
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- January 10, 2026
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Q.60 If f(2) = 5 and (f(x))(f(x+1)) = 3 for all real values of x, the value of f(10) is ____________. Given: f(2) = 5 and f(x) · f(x+1) = […]
Derivative of (sin x + cos x)/(sin x – cos x) at x=0
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- January 10, 2026
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Q.59 If f(x) = (sin x + cos x) / (sin x − cos x), the value of f′(x) at x = 0 is ____________. Introduction Finding the derivative of […]
Value of |A⁴ + 3A² − 5A + 6I| for A = (1 2; 3 5)
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- January 10, 2026
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Q.58 If A = ( 1 2 3 5 ), the value of |A4 + 3A2 − 5A + 6I| is ____________. Determinant of A⁴ + 3A² − […]
Protein Quantum Yield FRET
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- January 10, 2026
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Q.57 A protein has three identical sites arranged at the vertices of an equilateral triangle. If one site is filled with a dye (donor), the measured quantum yield (ϕD) is […]
Total DNA Amount to Stretch from Earth to Moon
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- January 10, 2026
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Q.56 If 1000 bp of a double-helical DNA weighs 1×10−18 gm and distance between two bp is 0.34 nm, the total amount of DNA (in mg, rounded off to one […]
DNA Adenine 13% G+C Content Bacterial Species Calculation
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- January 10, 2026
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Q.55 DNA sample collected from an unidentified bacterial species (Y) contains 13% ofadenine. The G+C content (in percentage) of Y is ___________. DNA from bacterial species Y contains 13% adenine […]
Enzyme Km Calculation
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- January 10, 2026
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Q.54 An enzyme (E) catalyzes the biochemical reaction A → B with kcat equal to 500 s−1. If the initial reaction velocity (V0) is 10 μM.s−1 at the total enzyme […]
Chemostat With Cell Recycle
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- January 10, 2026
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Q.53 The following schematic diagram shows a chemostat with cell recycle Where F0 and Fr are the volumetric flow rates (in L.h−1) of feed and recycle streams, respectively. X1, X0 […]
Number of Ways to Form Five Intramolecular Disulfide Bonds
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- January 10, 2026
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Q.52 The number of different possible ways of forming five intramolecular disulfidebonds with ten cysteine residues of a protein is ___________. Number of Ways to Form Five Intramolecular Disulfide Bonds […]


