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Q.36 You have prepared 1.0 liter of 0.5 M acetate buffer (pH = 5.0). The dissociation constant of acetic acid is 1.7 × 10−5 M. What would be the acetate ion […]

Q.35 In different types of tissue transplantations, the rate of graft rejection in decreasing order is (A) Isograft > Xenograft > Allograft (B) Allograft > Isograft > Xenograft (C) Xenograft […]

Q.34 An oligonucleotide was sequenced by the dideoxy method of Sanger and the following autoradiogram was obtained The sequence of the oligonucleotide is (A) 3’-GTCCTGTACA-5’ (B) 5’-GTCCTGTACA-3’ (C) 5’-ACATGTCCTG-3’ (D) […]

Q.33 An enzyme has two binding sites for an inhibitor molecule. When the inhibitor binds to the first site, the dissociation constant of the inhibitor for the second site increases, […]

Q.32 During the biosynthesis of urea in the urea cycle, the two nitrogen atoms are derived from (A) Two free ammonium groups (B) Free ammonium group and aspartate (C) Both […]

Q.31 The terminal electron acceptor during mitochondrial respiration is (A) O2 (B) FAD+ (C) NAD+ (D) ATP Mitochondrial Terminal Electron Acceptor: O2 MCQ Solution Oxygen (O₂) serves as the terminal […]

Q.30 Which one of the following amino acid residues is specifically recognised by chymotrypsin during peptide bond cleavage? (A) Phe (B) Leu (C) Val (D) Asp Chymotrypsin Specificity: Amino Acid […]

Q.29 The order n for a given substrate concentration in an enzyme catalyzed reaction following Michaelis-Menten kinetics, is (A) n = 1 (B) n = 0 (C) n is not […]

Q.28 The length of an α-helix composed of 36 amino acid residues is (A) 10 Å (B) 54 Å (C) 27 Å (D) 360 Å The length of an α-helix […]

Q.27 Which one of the following amino acids has a higher propensity for cis peptide bondformation?(A) Histidine(B) Cysteine(C) Glycine(D) Proline Proline has the highest propensity for cis peptide bond formation […]