Tag: GATE Biotechnology Previous Year Papers with Solutions

Q.31 The contour length of a B-DNA molecule that encodes a bacterial protein of 33 kDa is ______ nm. Consider the average molecular weight of an amino acid as 110 […]

Q.30 The allele associated with albinism in humans is recessive (c). The probability that an albino male (cc) and a carrier female (Cc) will have an offspring with normal skin […]

Q.29 For a mechanically reversible isobaric process taking place in a closed system involving 5 moles of an ideal gas, the temperature increases from an initial value of 300 K […]

Q.28 If the doubling time of a bacterial population is 3 hours, then its average specific growth rate during this period is _____ h-1. (Round off to two decimal places) […]

Q.27 A recombinant protein is secreted extracellularly in soluble form by an E. coli culture. Which of the following downstream processes is/are involved in the purification of the extracellular secreted […]

Q.26 Which of the following compounds have the same degree of reduction per carbon-mole? (A) Glucose (B) Lactic acid (C) Acetic acid (D) Formic acid Glucose vs Lactic Acid vs […]

Q.25 Which of the following fluids exhibit(s) non-Newtonian behaviour at 25 C? (A) Toothpaste (B) Mercury (C) Brine (D) Blood plasma Understanding Non-Newtonian Fluids: Toothpaste, Mercury, Brine, and Blood Plasma […]

Q.24 Which of the following show(s) optical activity at 100 mM concentration in water? (A) Solution of NaCl (B) Solution of D-Glucose (C) Solution of Glycine (D) Solution of L-Proline […]

Q.23 Which of the following separation processes is/are based on molecular size? (A) Size-exclusion chromatography (B) Ion exchange chromatography (C) Membrane ultrafiltration (D) Ultracentrifugation Size-exclusion chromatography, membrane ultrafiltration, and ultracentrifugation […]

Q.22 Which of the following enzymes is/are involved in the biogenesis of miRNA? (A) Drosha (B) Cas9 (C) XRCC4 (D) Dicer Drosha and Dicer are key RNase III enzymes central […]