Tag: GATE Biotechnology Previous Year Papers with Solutions

Q.51 Which one of the following statements is CORRECT about proportional controllers?(A) The initial change in control output signal is relatively slow(B) The initial corrective action is greater for larger […]

Q.50 Which of the following factors can influence the lag phase of a microbial culture in a batchfermentor?P. Inoculum sizeQ. Inoculum ageR. Medium composition(A) P and Q only (B) Q […]

Q.49 The Laplace transform of the function f(t) = t2 + 2t + 1 is (A) 1/s3 + 3/s2 + 1/s (B) 4/s3 + 4/s2 + 1/s (C) 2/s3 + […]

Q.48 What is the solution of the differential equation dy/dx = x/y, with the initial condition, at x = 0, y = 1? (A) x2 = y2 + 1 (B) […]

Q.47 Which one of the following amino acid residues will destabilize an α-helix when inserted in the middle of the helix? (A) Pro     (B) Val     (C) Ile     […]

Q.46 Which one of the following covalent linkages exists between 7-Methyl guanosine (m7G) and mRNAs? (A) 2′-3′ triphosphate     (B) 3′-5′ triphosphate (C) 5′-5′ triphosphate     (D) 2′-5′ triphosphate Correct […]

Q.45 Which of the following statements are CORRECT about the function of fetal bovine serumin animal cell culture?P. It stimulates cell growthQ. It enhances cell attachmentR. It provides hormones and […]

Q.44 Antibody–producing hybridoma cells are generated by the fusion of a(A) T cell with a myeloma cell (B) B cell with a myeloma cell(C) macrophage with a myeloma cell (D) […]

Q.43 The hexapeptide P has an isoelectric point (pI) of 6.9. Hexapeptide Q is a variant of P thatcontains valine instead of glutamate at position 3. The two peptides are […]

Q.42 Group I lists spectroscopic methods and Group II lists biomolecular applications of thesemethods. Match the methods in Group I with the applications in Group II.Group I        […]