58. Which one of the following Immunoglobulins cause type 1 allergic reaction? A. IgG B. IgM C. IgE D. IgA Introduction: Immunoglobulins Involved in Type 1 Allergic Reactions Type 1 […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Protein Structures: Which of These Does Not Have a Quaternary Structure?
Which of the following does not have a quaternary structure? 1. collagen 2. RNA polymerase 3. haemoglobin 4. myoglobin Detailed Explanation:Correct Answer:4. Myoglobin What Is Quaternary Structure in Proteins? […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Exploring Biopesticides: What They Are and Which Ones Are Not Used
Which of the following is NOT used as a biopesticide? 1. Nuclear Polyhedrosis Virus 2. Bacillus thuringiensis 3. Trichoderma harzianum 4. Xanthomonascampestris Detailed Explanation:Correct Answer:4. Xanthomonas campestris What Are […]
DBT BET JRF 2022 Previous Year Questions and Video solution
How to Reduce Maximum Shear Rate in a Reactor Without Changing Power Consumption
57. You wish to reduce the maximum shear rate in your reactor (given by impeller tip speed), without changing the power consumption (agitator power). For this, you will: A. Increase […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Understanding the Measure of Similarity Between Aligned Macromolecules
56. The measure of similarity between two structurally aligned macromolecules is: A. Median Distance between the Centroids (MDC) B. Root Mean Square Deviation (RMSD) C. Squared Mean Distance between atoms […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Gene Relationships: Vertical Descent and Types of Gene Homology
Genes related through vertical descent from a common ancestral gene are called 1. heterologous 2. xenologous 3. paralogous 4. orthologous Detailed Explanation:Correct Answer:4. Orthologous What Are Orthologous Genes? Orthologous genes […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Understanding Centimorgan and Genetic Distance in Genetics
55. One centimorgan is defined as the genetic distance between two loci with a statistically corrected recombination frequency of: A. 0.1% B. 0.5% C. 1.0% D. 5.0% Introduction: In genetics, […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Enzyme Functions in Molecular Biology
Identify the incorrect pair 1. DNase I : Cleaves only double stranded DNA 2. Alkaline Phosphatase : Removes 5′ phosphate from the DNA 3. RNA polymerase: Transcription 4. DNA Polymerase […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Identifying Thermophilic Bacteria Based on DNA Composition
54. DNA isolated from four unidentified species of bacteria – A, B, C and D has been estimated to have 38%, 26%, 24% and 12% thymine, respectively. One of these […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Understanding the Role of Delta and Notch in Metazoan Development
53. Choose the correct statement in respect to metazoan development: A. Delta is a cell surface protein while Notch is an intracellular protein. B. Notch is a cell surface protein […]
