Tag: DBT JRF PYQ-2023

Q13. In a class, the average weight of boys is 65 Kg and average weight of girls is 55 Kg. If average weight of all students of the class is […]

Q 12 Match List I with List II LIST I  (Indian Environmentalists)               LIST II  (environmental impact awareness) A. Sh. Sunderlal Bahuguna        […]

Q11 Which of the following dyes CANNOT be used as a fluorescent probe for microscopy? 1. DAPI 2. Trypan blue 3. Fluorescein 4. Rhodamine Fluorescent Dyes for Microscopy – Which […]

Q10 What is the product formed upon decarboxylation of oxalic acid with release of one molecule of CO2? 1. Acetic acid 2. Aspartic acid 3. Formic acid 4. Butyric acid […]

Q9 Which of the following statements correctly depicts the Beer-Lambert law? 1. Absorbance is directly proportional to path length and concentration. 2. Absorbance is directly proportional to molar absorptivity, and […]

Q8 Vande-Bharat express runs at a speed of 120 km/h. It starts from a station 8 hours after a goods train leaves that station. Vande-Bharat overtakes the goods train after […]

Q7 EcoRI enzyme recognizes the sequence GAATTC. A stretch of linear DNA with six GAATTC sites, upon digestion with EcoRI, will give rise to 1. 8 fragments 2. 7 fragments […]

Q6 Acid rain is caused by 1. Carbon dioxide 2. Hydrogen 3. Biomethane 4. Nitrogen dioxide What Causes Acid Rain? Understanding the Role of Nitrogen Dioxide and Other Pollutants Acid […]

Q5. A reservoir has two pipes, A and B. Pipe A can fill the reservoir in 12 hours. Pipe B takes 15 hours to fill the reservoir. There is another […]

Q4 In affinity chromatography, the protein bound to the column can be eluted using a buffer containing 1. 0.1 mM NaCl 2. Acetonitrile 3. immobilized ligand 4. free ligand   […]