Category: GATE Biotechnology Previous Year Papers with Solutions

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        […]

Q.41 Which of the following factors affect the fidelity of DNA polymerase in polymerase chainreaction?P. Mg2+ concentrationQ. pHR. Annealing temperature(A) P and Q only (B) P and R only(C) Q […]