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Q.58 A piece of charcoal, containing 36 grams of Carbon, found in ancient ruins shows a 14C activity of 300 decays/min. The tree, from which this charcoal came, has been […]

Q.57 A copper wire having a cross sectional area of 6.62 × 10−6 m2 carries a current of 20 A. Assuming that each atom contributes one free electron to the […]

Q.56 If [x] denotes the greatest integer valued function (e.g., [1.16] = 1 & [1.8] = 1) and L = ∫13 [x² + 1]/[x+1] dx, then ____=L degrees. Problem Statement […]

Q.55 The right limit limx→3⁺ [log((x-3)) + csc³((x-3)) + (x-3)²] is _____ . Introduction This article explains step by step how to evaluate the right limit of the function (x−3)²(log(x−3)+csc((x−3)²)) […]

Q.54 A 50-amino acid residue stretch of a globular protein adopts an extended structure containing a true α-helix of 24 residues and β-strand of 26 residues. The total length of […]

Q.53 A culture of 106 bacteria, with doubling time of 60 min, is grown in a nutrient medium at 37 °C. Considering that the nutrients are unlimited, the number of […]

Q.52 In maize, the genes for colored seed and round seed are dominant over the genes for colorless seed and shrunken seed. Pure breeding strains of the double dominant variety […]

Q.51 The following polypeptide chain was sequentially treated with dithiothreitol, cyanogen bromide, and trypsin. Phe-Trp-Lys-Tyr-Met-Gly-Ala-Cys-Cys-Pro-Met-Asp-Gly-Arg-Phe-Ala-Gly-Trp The total number of fragments expected at the end of complete digestion of the polypeptide […]

Q.50 An enzyme catalyzes the conversion of 4 × 10−4 M substrate into product at a rateof 20 μM/min. If the Km value for the enzyme is 2 × 10−4 […]

Q.49 From the database of a clinic it was found that out of 2000 patients who had visitedthe clinic in a year, 900 had high BP, 900 had high Sugar […]