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Q.36 As per the Angiosperm Phylogeny Group (APG II, 2003) classification, which of the following plant families comprises of only single genus with single species? (A) Lauraceae (B) Aristolochiaceae (C) […]

Q.35 A newly isolated circular plasmid gave two bands of 3.2 and 3 kb on digestion with EcoRI and two bands of 5.0 kb and 1.2 kb on digestion with […]

Q.34 Cardiotonic steroids have ability to strengthen heart muscle contraction due to the fact that these steroids (A) inhibit K +-dependent dephosphorylation of Na+ −K +ATPase (B) activate Na+ − […]

Q.33 In an in vitro dehydrogenation reaction of succinate catalyzed by succinate dehydrogenase, malonate is added. Which one of the following curves represents the effect of malonate on the catalysis […]

Q.32 Match the molecule in column I with its function in column II Column I (P) Cholera toxin (Q) Pertussis toxin (R) IP3 (S) Caffeine Column II (i) modifies G𝛼i […]

Q.31 Match the following enzymes in column I with their cofactors in column IIColumn I (P) Pyruvate decarboxylase (Q) Glyceraldehyde 3-phosphate dehydrogenase (R) Pyruvate carboxylase (S) Glucose-6-phosphate dehydrogenase Column II […]

Q.30 In an enzyme catalyzed reaction, the initial reaction velocity is only one fourth of its maximum velocity. If the substrate concentration is 𝟑. 𝟎 × 𝟏𝟎−𝟑n𝐌, the value of […]

Q.29 Which one of the following is NOT TRUE for class I MHC protein? (A) MHC class I protein are polymorphic (B) T-cell receptors recognizes MHC class I protein (C) […]

Q.28 A solution containing GTP has extinction coefficient 1.55 × 103 mol-1 dm-3 cm-1 at a certain wavelength. The concentration of GTP solution is 1.29 × 10-5 mol dm-3. Absorbance […]

Q.27 In a PCR reaction, with one double stranded DNA of 600 bp , nano gram of DNA produced after 40 cycles of amplification will be ____ 1,100,000,000,000 nanograms (1.1 […]