100. Which one of the following is true about Phylograms and Cladograms? (a) Branches of cladograms are proportional to evolutionary time, (b) Cladograms show common ancestry but not time, (c) […]
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DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding the Concentration Factor in Crossflow Filtration
131. In a crossflow filtration process, if the volumetric flow rate of the feed is 10 times that of the retentate, the concentration factor is: (1) 9 (2) 9/10 (3) […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Regulatory Bodies for Approving Biologicals in India: Who Grants Clearance?
130. Which organization in India approves and gives regulatory clearance of biologicals? (1) Central Drugs Standard Control Organization (CDSCO) (2) National Institute of Biologicals (NIB) (3) Indian Pharmacopoeia Commission (IPC) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
From Contact Map to 3D Structure: Understanding the Process of Protein Folding
99. Contact map distance matrix of a protein provides a two-dimensional view of a three dimensional structure of a protein. How can you obtain a proper three-dimensional structure from the […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
How to Study Protein Localization in Cells: Methods and Techniques
The location of a proteins in cells can be studied using 1. X-ray crystallography 2. western blotting 3. fluorescent microscopy 4. NMR spectroscopy Detailed Explanation: The correct answer is: […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding the Role of Partitioning in Gas Chromatography
129. What property is involved in the separation of a mixture of analytes using gas chromatography? (1) Partitioning (2) Conductivity (3) Mass (4) Polarity Detailed Explanation: Question:What property is involved […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding PAM Units: What Does 1 PAM Distance Mean in Sequence Comparison?
98. If two sequences are 1 PAM apart, then they will be: (a) 1% identical amino acid residues, (b) 1% similar nucleotide bases, (c) 99% identical amino acid residues, (d) […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
How Pruning Makes a Hedge Dense: The Role of Apical Dominance
Pruning helps in making the hedge dense because 1. it frees axillaery buds fromapical dominance 2. more root growth supports more shoot branches 3. the apical shoot grows slower after […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Optimizing Chromatographic Methods for Clinical Grade Recombinant Protein Purification
128. A recombinant therapeutic protein is intracellularly produced in soluble form using E. coli. Which one of the following sequences of chromatographic separation methods is preferable for obtaining clinical grade […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Role of Catalytic Triads in Proteases: Serine, Histidine, and Aspartic Acid
97. Given below are two statements: Statement I: Serine is part of a catalytic triad in proteases that also includes histidineand aspartic acid. Statement II: Catalytic triads are responsible for […]
