33. You have an assay method that can estimate compound A upto level 10 mg/ml. If you need to modify it so that you can estimate 0.1 mg/ml, you need […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
Role of Endothecium in Anther Dehiscence: Structure and Function
The mature anther wall comprises an epidermis followed by a layer of radially elongated cells with fibrous bands of callose called endothecium whose function is 1. mechanical 2. protection 3. […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Chip-on-Chip Technique: Identifying Transcription Factor Binding Regions
32. Chip-on-chip, a technique that combines chromatin immune precipitation with microarrays, is used to identify: (a) micro-RNA coding genes, (b) Protein motifs involved in protein-protein interaction, (c) Protein-coding regions in […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What Are Lectins? The Key Probes for Analyzing Glycoproteins
The probe used to analyse glycoproteins is 1. interferons 2. cytokine 3. lectins 4. glutens Understanding Glycoproteins and Their Analysis Glycoproteins are proteins that contain carbohydrate groups attached to […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Identifying Fake Medicines: How to Detect Pharmaceutical Counterfeits
31. Fake medicines are a nuisance that shatter the faith of patients in medicine and enhance the emergence of drug resistance. A medicine is likely to be fake if: (a) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Gel Filtration Chromatography: Separation Based on Hydrodynamic Volume
30. Gel filtration chromatography separates proteins on the basis of: (a) Affinity tag, (b) Charge, (c) Hydrodynamic volume, (d) Hydrophobicity Introduction Gel filtration chromatography, also known as size exclusion chromatography […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Hepatitis B: A Serious Viral Infection That Affects the Liver
Hepatitis B is caused by a 1. fungal infection 2. viral infection 3. protozoan infection 4. bacterial infection What Is Hepatitis B? Hepatitis B is a contagious liver disease caused […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Hypochromic Effect in DNA Melting Temperature Estimation
29. The hypochromic effect is used to estimate the melting temperature for double- stranded DNA. It arises because: (a) Double stranded DNA absorbs more UV light than single stranded DNA, […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Contigs in Genomics: Definition and Significance
28. In genomics, a contig means: (a) A set of fragments generated through digestion with restriction enzymes, (b) A set of molecular markers used in genetic mapping, (c) A set […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What Is Not Transcribed by RNA Polymerase II? A Focus on tRNA and 5S rRNA
Which of the following are NOT transcribed by RNA polymerase II ? 1. miRNA and some snRNA 2. mRNA and snoRNA 3. miRNA and snoRNA 4. tRNA and 5S rRNA […]
