78. What is the minimum number of tRNAs required to recognize all six codons of serine (UCU, UCA, UCG, UCC, AGU and AGC)? (1) 2 (2) 3 (3) 4 (4) […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
Why Apical Meristem is Key for Raising Virus-Free Plants in Micropropagation
Which part of a plant would be most suitable for raising virus-free plants for micropropagation? 1. node 2. bark 3. vascular tissue 4. apical meristem Introduction to Micropropagation Micropropagation is […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Transport Mechanisms: Which Transport Type Does Not Reach Vmax?
The type of transport that does NOT reach Vmax is: (1) Simple diffusion across lipid bilayer (2) Facilitated diffusion via uniporters (3) Movement of ions through ion channels (4) Primary […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Golden Rice: A Breakthrough in Genetic Engineering and Carotenoid Production
‘Golden rice’ is genetically engineered by altering the biosynthetic pathway for the production of 1. carotenoids 2. chlorophylls 3. flavonoids 4. Phycocyanins What is Golden Rice? Golden rice is […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What is Root Mean Square Deviation (RMSD) and Its Role in Protein Structure Comparison?
Which of the following represents a quantitative measure of the structural similarity between two proteins? 1. revised mode square deviation 2. root mean square distance 3. standard deviation 4. root […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What is a Shuttle Vector? Exploring Its Role in Genetic Engineering
A shuttle vector is a vector that 1. can replicate in the cells of more than one organism 2. helps in transporting proteins from one cell to the adjacent cell […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Title: Understanding CRISPR/Cas9 Immunity: How Autoimmunity is Prevented in Bacteria
76. CRISPR/Cas9 is an example of bacterial adaptive immunity. The transcription of CRISPR loci generates small crispr-RNAs (crRNA) to specifically target viral DNA, but not CRISPR loci, by forming complex […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
The First FDA-Approved Genetically Engineered Drug: Insulin
The first drug approved by FDA of USA, that was produced through genetic engineering was 1. Somatotropin 2. insulin 3. penicillin 4. interferon Introduction: A Biotech Breakthrough The first FDA-approved […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Supercoiling in Circular DNA: The Role of Nicks and Sequences in Underwinding and Overwinding
75. Underwinding or overwinding of circular dsDNA generates supercoils only when it does NOT have any of the following: (1) Nicks (2) repeat sequences (3) G:C rich regions (4) A:T […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Key Differences Between Peroxisomes, Mitochondria, and Chloroplasts
37. Peroxisomes are different from mitochondria and chloroplast mainly because they are: (a) Not the major sites of oxygen utilization, (b) Surrounded by double membrane, (c) Surrounded by single membrane […]
