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Q.46 Bast fibres are present in (A) Xylem (B) Phloem (C) Collenchyma (D) Parenchyma Bast Fibres Location in Plants: Phloem, Xylem, Collenchyma or Parenchyma? Bast fibres, also called phloem fibres, […]

Q.45 A patient suffering from pneumonia and tuberculosis was found to have very low CD4+ T cells. In all probability the PRIMARY causative infectious agent belongs to (A) Klebsiella family […]

Q.44 An enzyme of 40 kDa is added to a substrate solution in a molar ratio of 1:3. The concentration of the enzyme in the mixture is 12 mg/ml. What […]

Q.43 You have expressed the following protein that has an isoelectric point of 6.0. The best order of protein purification methodologies to obtain a pure protein is? (A) Gel filtration […]

Q.42 Which of the four restriction enzymes given below cut the following DNA sequence? 5’-CCGATATCTCGAGGGC-3’ (P) BamH1 (3’-CCTAG^G-5’) (Q) XhoI (3’-GAGCT^C-5’) (R) EcoRI (3’-CTTAA^G-5’) (S) EcoRV (3’-CTA^TAG-5’) (A) P & […]

Q.41 A researcher wants to clone 3 DNA fragments of sizes 1.1 Mb, 0.097 Mb and 0.045 Mb. The choice of the vectors for cloning each of the fragments are: (A) […]

Q.40 Match the following enzymes with their regulatory mechanism (a) Phosphofructokinase                       1. Product inhibition (b) Glycogen synthase        […]

Q.39 Arrange the following in the increasing order of amount of ATP generated by metabolism of one molecule of the following compounds. (i) Anaerobic catabolism of starch with 300 glucose […]

Q.38 Arrange the following in the decreasing order of their permeability coefficients across a lipid bilayer membrane. (i) Urea (ii) Glucose (iii) H2O (iv) Na+ (v) Tryptophan (A) (i), (iii), […]

Q.37 The following figures show the plot of reaction rate (v) versus substrate concentration (mM) for an enzyme-catalyzed reaction in the presence and absence of an inhibitor. Match the possible reaction […]