53. Which one of the Immunoglobulins (Ig) cause type-I hypersensitive immune reaction? (a)IgA (b)IgE (c)IgG (d)IgM Article: Introduction Type-I hypersensitivity refers to allergic reactions that occur rapidly after exposure to […]
Blog
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Prepare a TE Buffer Using Stock Solutions of Tris and EDTA
A TE buffer contains 200 mMTris and 50 mM EDTA. Given the stock solutions – 0.5 M Tris and 0.5 M EDTA, volumes of stock solutions required to make 1 […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Many Runs Should a Cricketer Score to Increase Batting Average
A cricketer has an average of 62 runs after playing 25 innings. How many runs should he score in the next innings so as to increase his average to 65 […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Enzyme-Linked Immunospot (ELISPOT) Assay and Its Role in Cytokine Analysis
52. Enzyme-linked immunospot (ELISPOT) assay measures: (a)Cytokine concentration in culture supernatant (b)Expression of cytokine gene (c)Intracellular cytokine concentration (d)Number of cytokine releasing cells at single cell level Article: Introduction The […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
DNA denaturation cooperative phenomenon
Denaturation of DNA is a 1. temperature-independent process 2. linear process 3. cooperative phenomenon 4. neither linear nor a cooperative process What is DNA Denaturation? DNA denaturation refers to the […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Why You Don’t Need Topoisomerase in a PCR Reaction Mix for Gene Amplification
51. DNA replication requires DNA-Topoisomerase to remove the supercoiling of DNA that accumulates at the end of a growing replication fork. You wish to perform a PCR amplification of a […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Calculate the Specific Growth Rate of Organisms Using Monod Growth Model
What is 10 / 8 (1) 2 (2) 1.25! (3) 90 (4) 1.25 Calculating the Specific Growth Rate Using the Monod Growth Model The Monod growth model is a widely […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Which Aminoacyl-tRNA Binds First to the P Site During Bacterial Translation?
50. During translation which one of the following aminoacyl-tRNA binds first to the P site of bacterial ribosomes? (a) fMet-tRNAfMet (b) fMet-tRNAMet (c) Met-tRNAfMet (d) Met-tRNAMet Article: Introduction In the […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Why Sucrose is Non-Reducing Sugar
Which of the following is a non-reducing sugar? 1. fructose 2. galactose 3. ribose 4. sucrose What is a Non-Reducing Sugar and Why is Sucrose One? In the world of […]
DBT BET JRF 2021 Previous Year Questions and Video solution
What Is the Shortest Land Route Between Mumbai and Mexico on the Same Latitude?
49. The shortest land route has to be determined from Mumbai to a city X in Mexico at the same latitude. The route will be: (a)A line curving so that […]
