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40. For a discrete random variable X, ran(X) = {0, 1, 2, 3} and the cumulative probability F(X) is shown below: X 0 1 2 3 F(X) 0.5 0.6 0.8 […]

39. What are the eigenvalues of the following matrix? [    1          1 −2          4 ] (A) 2 and 3 (B) −2 […]

38. Match the compounds in Group I with the correct entries in Group II. Group I                              […]

37. How many rooted and unrooted phylogenetic trees, respectively, are possible with four different sequences? (A) 3 and 15 (B) 15 and 3 (C) 15 and 12 (D) 12 and […]

36. An isolated population on an island has the following genotypic frequencies: Genotype AA Aa aa Frequency 0.3 0.4 0.3 Assuming that there are only two alleles (A and a) […]

35. The interaction between an antigen (Ag) and a single-chain antibody (Ab) was studied using Scatchard analysis. The result is shown below. In the plot, the Y-axis represents [Ab–Ag]/[Ag] and […]

34. 2×1 + x2 = 3 5×1 + b x2 = 7.5 The system of linear equations in two variables shown above will have infinite solutions, if and only if […]

33. Consider the following infinite series: 1 + r + r2 + r3 + … + ∞ If r = 0.3, then the sum of this infinite series is __________. […]

32. Choose the appropriate pair of primers to amplify the following DNA fragment by the polymerase chain reaction (PCR). 5′–GACCTGTGG—————————–ATACGGGAT–3′ 3′–CTGGACACC—————————–TATGCCCTA–5′ Primers P. 5′–GACCTGTGG–3′ Q. 5′–CCACAGGTC–3′ R. 5′–TAGGCCATA–3′ S. 5′–ATCCCGTAT–3′ […]

31. Which of the following gaphs represents uncompetitive inhibition? Introduction Questions based on enzyme inhibition are very common in biochemistry and competitive exams like NEET, CSIR-NET, GATE, and university exams. […]