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Q.21 What is the solution of \( \int \frac{x}{x^2 \ln x} \, dx \)? Given \( C \) is an arbitrary constant. (A) \( \frac{x^3}{3} \ln x – \frac{x^3}{9} + […]

Q.20 The number of three letter words, with or without meaning, which can be formed using letters of the word ‘VIRUS’ without repetition of letters is (A) 30 (B) 40 […]

Q.19 If φ(x) = x² and ψ(x) = 2x, then ψ(φ(x)) is (A) 2x² (B) x² (C) 2²x (D) x²x The correct answer is (A) 2x². ψ(φ(x)) represents the composition of […]

Q.18 Match the entries in Group I with that in Group II Group I Group II P) Vitamin B1 1) Co-enzyme A Q) Vitamin B2 2) Flavin mononucleotide R) Vitamin […]

Q.17 Match the entries in Group I with that in Group II Group I Group II P) Fehling’s test 1) α-Amino acid Q) Ninhydrin reaction 2) Reducing sugar R) Biuret […]

Q.16 Match the hormones in Group I with their functions in Group II Group I Group II P) Aldosterone 1) Stimulates the synthesis and secretion of androgens from the testis […]

Q.15 When bacteria are grown in glucose-depleted media containing high concentration of lactose, expression of lac operon genes is activated by (A) the binding of lac repressor in the operator […]

Q.14 Proenzyme pepsinogen is secreted from ‘P’ of gastric mucosa and converted into active enzyme pepsin on exposure to ‘Q’ secreted from ‘R’. Choose the CORRECT combination of P, Q […]

Q.13 Match the entries in Group I with that in Group II. Group I Group II P) Cholera toxin 1) Endotoxin Q) Diphtheria toxin 2) Neurotoxin R) Lipopolysaccharide 3) Enterotoxin […]

Q.12 Which of the following feature(s) should be present in a protein to generate strong immune response (antibody production) in an animal? I. At least one B-cell epitope II. At […]