dbt jrf 2019 Archives - Page 13 of 17 - CSIR NET LIFE SCIENCE COACHING | NTA NET LIFE SCIENCE

DBT BET JRF 2019 Previous Year Questions and Video solution

How Low Dissolved Oxygen Affects Mammalian Cell Culture Viability: Key Insights and Mechanisms

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April 13, 2025
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When dissolved oxygen is lower than the critical concentration in mammalian cell culture systems, cell viability declines because of: (1) Complete glutamine oxidation (2) Decrease in specific lactate production from […]

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Bromodomain Proteins and Their Recognition of Acetylated Proteins: A Key Mechanism in Post-Translational Modification

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April 13, 2025
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Which kind of post-translationally modified protein targets are recognized by Bromodomain containing proteins? (1) Acetylated protein (2) Glycosylated protein (3) Ubiqutinylated protein (4) Sumoylated protein 📘 Problem Statement Which kind […]

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What Gene Mutation Causes the Nude Mouse Phenotype? Exploring Foxn1 and Its Role in Immunodeficiency

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April 13, 2025
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Which one of the following genes is mutated in nude mice? (1) Foxn1 (2) Foxp3 (3) Foxp1 (4) Prkdc Problem Statement Which gene is mutated in nude mice, leading to […]

DBT BET JRF 2019 Previous Year Questions and Video solution

How Many Dipeptides Can Be Formed from L-Alanine and L-Glycine? Exploring Peptide Bond Formation

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April 13, 2025
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A young scientist was interested in creating a dipeptide using L-alanine and L-glycine. How many different dipeptides can be generated? (1) One (2) Two (3) Three (4) Four 📘 Problem […]

DBT BET JRF 2019 Previous Year Questions and Video solution

How Long Does It Take for 100 mg of 14C to Completely Disintegrate

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April 13, 2025
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14C has a half-life of 5760 years; 100 mg of a sample of 14C will completely disintegrate in: (1) 23,040 years (2) 1440 years (3) 11,520 years (4) infinite time […]

DBT BET JRF 2020 Previous Year Questions and Video solutions

At What pH Are the Concentrations of Acetic Acid and Acetate Ion Equal? A Guide to pKa and Buffer Chemistry

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April 13, 2025
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The pKa of acetic acid is 4.76. At what pH would the concentration of acetic acid and acetate ion be the same? (1) pH= 7 (2) pH = 6.7 (3) […]

DBT BET JRF 2019 Previous Year Questions and Video solution

How to Calculate Final Concentration After Heating and Dilution

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April 13, 2025
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While making 100 ml of 2M NaCl solution, a student left the solution on a heating platform reducing the volume by 50 ml. This solution was diluted 1:100 for use. […]

DBT BET JRF 2019 Previous Year Questions and Video solution

Chymotrypsin Enzyme Hydrolyzes Both Ester and Amide Bonds

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April 13, 2025
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Which one of the following enzymes can hydrolyze both ester and amide bonds? (1) Methionine racemase (2) Thrombin (3) Chymotrypsin (4) Peroxidase 📘 Problem Statement Which one of the following […]

DBT BET JRF 2019 Previous Year Questions and Video solution

Solving Analogies: WORLD WIDE WEB and its Relation to Games

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April 13, 2025
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If MONEY is to CARROM, MILITARY is to CHESS, COURT is to CRICKET then, WORLD WIDE WEB is to which of the following? (1) KhoKho (2) Kabaddi (3) Boxing (4) […]