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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 […]

Q.26 The duration of DNA synthesis (S phase) in plant cells is 11 h and the DNA is replicated at a rate of 𝟏𝟎𝟎𝐛𝐩/𝐬/ fork. A plant species has about […]

Q.25 Which one of the following features is NOT appropriate for Fab fragment of IgG ? (A) Contains antigen binding site (B) Contains an intact L chain (C) Two fragments […]

Q.24 Which one of the following will NOT form lipid bilayer? (A) Cholesterol (B) Phosphatidyl ethanolamine (C) Triacylglycerol (D) Phosphatidyl serine Triacylglycerol will NOT form a lipid bilayer. This is because […]

Q.22 Which one is TRUE for Calvin cycle? (A) Glycerol 3-phosphate is generated in this cycle (B) CO2 is not consumed in this cycle (C) This is a reductive pentose […]

Q.21 Which one of the enzymes is responsible for arsenic toxicity? (A) Pyruvate kinase (B) Aldolase (C) Phosphofructokinase (D) Pyruvate dehydrogenase Pyruvate dehydrogenase (option D) is the enzyme responsible for […]

Q.20 Puromycin is a structural analog of (A) alanyl-tRNA (B) tyrosyl-tRNA (C) methionyl-tRNA (D) glycyl-tRNA Puromycin is a structural analog of tyrosyl-tRNA (Option B). This antibiotic mimics the 3′ end of […]

Q.19 The number of fragments generated when the peptide ‘ANDCQEGKFMLKPDTWRYVSFMRPA’ is subjected to complete digestion with trypsin are …… 6 fragments are generated from complete trypsin digestion of the peptide […]