During genome engineering process, the role of flippase enzyme in the next round of modification in the target gene is to 1. add frt sequence 2. remove frt sequence 3. […]
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DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Sequence Alignment with Needleman-Wunsch Algorithm: Best Score Calculation
101. Two sequences PLAVAV and PLLV were aligned using Needliman-Wunsch algorithm with the scores, match = 1, mismatch = -1, gap initiation = -1, gap elongation = -2. The alignment […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Difference Between Phylograms and Cladograms in Evolutionary Biology
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) […]
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 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 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 […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Key Microorganism Used in Commercial Bioleaching for Copper Recovery
A major organism used in commercial bioleaching for copper recovery is 1. Thiobacillusferrooxidans 2. Desulfovibriodesulfuricans 3. Pseudomonas aeruginosa 4. Aspergillusniger Detailed Explanation: The correct answer is: 1. Thiobacillus ferrooxidans […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Cooperativity in Protein Folding: All-or-None Phenomenon Explained
96. Protein folding is highly cooperative. Which one of the following statement define this cooperativity? (a) If one protein unfolds, it forces a nearby protein to unfold too, (b) If […]
