In the cloverleaf structure of tRNA, the cognate amino acid is attached at 1. acceptor stem 2. T loop 3. anticodon arm 4. D loop Introduction In the complex […]
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DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Ribosome Binding in Eukaryotic mRNA Translation
84. For efficient translation of certain eukaryotic mRNAs under many physiological and pathological stress conditions, the small subunit of ribosome binds to the mRNA at the: (1) 5‵ Cap. (2) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Which Enzyme Plays a Key Role in Glucose Homeostasis?
40. The enzyme that plays a key role in glucose homeostasis is: (a) Fructokinase , (b) Galactokinase , (c) Glucokinase , (d) Hexokinase Which Enzyme Is Crucial for Glucose Homeostasis? […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Which of the Following Is NOT a Characteristic of an Enhancer?
39. Which one among the following is NOT a characteristic of an “Enhancer”? (a) It is conserved in evolution , (b) It is transcribed to form enhancer RNA , (c) […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Phosphorylation: The Key Post-Translational Modification in Signal Transduction
Which post-translational modification is observed most commonly in signal transduction? 1. Nitrosylation 2. phosphorylation 3. carbonylation 4. acetylation Introduction to Post-Translational Modifications Post-translational modifications (PTMs) refer to the chemical changes […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Exploring Bioplastics: Polyhydroxybutyrate and Other Sustainable Alternatives
80. Which one of the following materials is a bioplastic? (1) Polypropylene (2) Alginate (3) Polyhydroxybutyrate (4) Dextran Introduction: With the growing environmental concerns about plastic waste and pollution, the […]
DBT BET JRF 2021 Previous Year Questions and Video solution
What is Copy Number Variation (CNV) in Genetics
38. Copy number variation (CNV) signifies: (a) A short (1- 4 nucleotide) highly polymorphic DNA sequence, widely distributed in the genome (b) DNA segments > 1 Kb repeated multiple times […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Signal Recognition Particles (SRPs) and Their Role in Protein Targeting
Which one of the following statements about signal recognition particles (SRPs) is INCORRECT? An SRP: (1) contains RNA and protein. (2) is an integral membrane protein. (3) docks with a […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Ramsar Convention: Protecting Wetlands Globally
Wetlands are very rich and diverse ecosystems and must be preserved. Which convention signed in Iran protects this specific ecosystem (wetlands) on a global basis? 1. Ramsar Convention 2 Vienna […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
How Klenow Enzyme Extends DNA Fragments with 5′ Overhangs
Which one of the following can be extended by Klenow enzyme upon addition of dNTPs and Mg 2+? 1. restriction fragment with a 5′ overhang 2. restriction fragment with a […]
