144. During mixed acid fermentation by E. coli, which one of the following is NOT produced? (1) Lactic acid (2) Ethanol (3) Succinic acid (4) Citric acid Detailed Explanation: Question:During […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding the Structural Comparison Between Hemoglobin and Myoglobin
The comparison of the structures of haemoglobin and myoglobin shows that they have 1. different primary structure butsimmilar tertiary structure 2. similar primary structure but different tertiary structure 3. different […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Treating Parkinson’s Disease with Dopamine-Producing Neurons from Stem Cells
123. Which one of the following diseases can be treated with dopamine producing neuronsgenerated from stem cells? (a) Alzheimer’s disease, (b) Amyotrophic lateral sclerosis, (c) Brain tumor, (d) Parkinson’s disease […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding the Pulse Input Response Curve for CSTRs: What Does a Long Tail Indicate?
143. If the pulse input response curve for a CSTR shows a long tail, it means: (1) Strong internal circulation in the reactor (2) Dead space in the reactor (3) […]
DBT BET JRF 2019 Previous Year Questions and Video solution
What Does a Catalyst Do? Understanding Its Role in Chemical Reactions
142. A catalyst: (1) Reduces the free energy change of the reaction (2) Increases the free energy change of the reaction (3) Reduces the activation energy of the reaction (4) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Pathogenicity Islands: Key to Bacterial Virulence
122. Which statement is TRUE for pathogenicity islands? (a) These are large segments of bacterial genome encoding virulence factors, (b) They coordinate gene expression to make the biofilm, (c) They […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Glycerol: A Key Fluid in Bioprocessing and Its Rheological Properties
141. Glycerol is a: (1) Newtonian fluid (2) Pseudoplastic fluid (3) Thixotropic fluid (4) Dilatant fluid Detailed Explanation: Question:Glycerol is a: (1) Newtonian fluid (2) Pseudoplastic fluid (3) Thixotropic fluid […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Agent Orange: A Hazardous Herbicide and Its Environmental Impact
What is agent Orange? 1. hazardous chemical used in luminous paints 2. biodegradable insecticide 3. herbicide containing dioxin 4. color used in fluorescent lamps Detailed Explanation: Correct Answer:3. herbicide containing […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Kuru Disease: The Role of Prions in Human Health
121. Kuru disease in human is caused by: (a) Bacteria, (b) Mycoplasma, (c) Prions, (d) Virus Introduction Kuru disease is a rare but fascinating and terrifying neurological disorder that has […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Developing a Structured Model for Microbial Cell Growth: Key Approaches and Methods
140. In developing a structured model for microbial cell growth, we: (1) separate the population by age. (2) compartmentalize the cell into different components. (3) separate the cells by age […]
