Which of the following is true for acetyl-CoA? 1. it is an acetyl group attached to a type of coenzyme 2. it is another name for oxaloacetate 3. it is […]
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DBT BET JRF 2019 Previous Year Questions and Video solution
Why Anti-Histamines Are Used for Allergies: Understanding Mast Cell Degranulation
A patient suffering from allergy has been advised to take anti-histamine drugs. Which one of the following biological processes is most likely to be the reason for the allergy? (1) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Roles of Methylation, Hydroxylation, Phosphorylation and poly-ubiquitination in Protein
8. Match the components of list I with those in list II List I […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Difference Between Intracellular and Cell Membrane Receptors Hormones
The major difference between hormones that have intracellular receptors and those that have cell membrane receptors is that the former is usually: (1) Charged (2) Hydrophilic (3) Glycosylated (4)Hydrophobic Difference […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Which Dideoxy Nucleotides Are Used in Sanger DNA Sequencing?
For sequencing DNA by Sanger’s method, the chain elongation is terminated by: (a) 1′, 4′ dideoxy nucleotides, (b) 2, 3′ dideoxy nucleotides, (c) 2, 4′ dideoxy nucleotides, (d) 4, 3′ […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Chirality in Amino Acids
Q: Which one of the following is an achiral amino acid?(a) Alanine(b) Glycine(c) Phenylalanine(d) Proline Which Amino Acid Is Achiral? Understanding Chirality in Amino Acids Chirality is a fundamental concept […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Nonsense Mutations Creates Termination Codons
2. A mutation that generates a termination codon is known as: (a)Missense mutation, (b)Nonsense mutation, (c)Reverse mutation, (d)Silent mutation What Is a Nonsense Mutation? Understanding Mutations That Generate Termination […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Why G:C Base Pairs Increase the Melting Temperature of DNA
The melting temperature (𝑡𝑚) of DNA is higher when the content of: A. A:T base pairs is higher. B. G:C base pairs is higher. C. A:T base pairs is same […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Reverse Phase Chromatography: Elution Order of Protein and Salt
In Reverse Phase chromatography of a mixture of protein and sodium chloride: A. The salt will elute before the protein B. The salt and protein will co-elute C. The salt […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Understanding Michaelis-Menten Kinetics with Inhibitor effect on Km
An enzyme is governed by Michaelis-Menten Kinetics. The apparent 𝐾𝑀 increases four fold due to the addition of inhibitor but the reaction rate declines by 50%. The substrate concentration in […]
