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Q.41 Free energy change for transport of an uncharged solute across a membrane against a 1×103 fold concentration gradient at 25 °C is _____________kJ mol-1 . (rounded off to 2 […]

Q.40 Which of the following is/are CORRECT for the two molecules shown? (A) They are stereoisomers (B) Each of them has two stereogenic centers (C) They are mirror images of […]

Q.39 Which of the following statement(s) is/are CORRECT in the classical ‘ABC model’ for genetic control of flower development? (A) ‘Class A’ genes solely determine sepal identity (B) ‘Class B’ […]

Q.38 In ‘Futile Cycle’ chemical energy is dissipated as heat due to two opposite biochemical reactions. Which of the following biochemical reaction(s) is/are a part of ‘Futile Cycle’? (A) Glucose […]

Q.37 Which of the following metabolite(s) accumulate(s) in the blood of a human adult consuming a ketogenic diet? (A) D--hydroxybutyrate (B) Acetoacetate (C) Pyruvate (D) Oxaloacetate Ketogenic Diet Blood Metabolites: […]

Q.36 Which of the following condition(s) lead(s) to reduced affinity of O2 for human hemoglobin? (A) Reduction of pH of blood plasma from pH 7.4 to 7.2 (B) Decrease of […]

Q.35 Which of the following statement(s) is/are CORRECT for lac repressor expressed from the lacI gene? (A) The lac repressor is allosterically controlled and it binds to lac operator (B) […]

Q.34 The component(s) of the apoptosome is/are (A) cytochrome c (B) procaspase 9 (C) caspase 3 (D) caspase 8 Apoptosome Components: Cytochrome C and Procaspase 9 Explained The apoptosome forms […]

Q.33 The method(s) used to detect a DNA fragment of 150 base pairs is/are (A) agarose gel electrophoresis (B) northern blotting (C) polyacrylamide gel electrophoresis (D) western blotting Detecting 150 […]

Q.32 Which of the following statement(s) is/are CORRECT about ‘stringent response’ in bacteria? (A) It is linked to reduced growth rate (B) Guanosine tetraphosphate (ppGpp) alone is sufficient to trigger […]