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 […]
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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 2019 Previous Year Questions and Video solution
Base Excision Repair in DNA: Key Enzymes, Pathways, and a Common Misconception
65. Which one of the following statements regarding base excision DNA repair system is FALSE? (1) It can be triggered by damaged DNA. (2) The pol pathway facilitates replacement of […]
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 2019 Previous Year Questions and Video solution
How Modified tRNA Determines Amino Acid Incorporation During Translation
64. A tRNA containing an anticodon for leucine was charged with leucine. Subsequently, the attached leucine was chemically modified to arginine. This tRNA will incorporate: (1) Arginine against codon of […]
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 […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Enzyme Used to Prevent Unwanted Self-Ligation in DNA Cloning
27. The enzyme used to prevent unwanted self-ligation of DNA molecules during cloning experiments is: (a) Alkaline phosphatase, (b) Reverse transcriptase, (c) Terminal peroxidase, (d) Terminal phosphatase Introduction In DNA […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Studying Transient Protein–Protein Interactions in Live Cells: Why FRET is the Best Choice
62. Which one of the following techniques can be used to study transient protein – protein interactions in a live cell? (1) Pull-down assay (2) Immunoprecipitation (3) Surface Plasmon Resonance […]
DBT BET JRF 2021 Previous Year Questions and Video solution
The Role of Cardiolipin in Mitochondrial Membranes
26. The presence of Cardiolipin is a characteristic of the membrane of: (a) Endoplasmic reticulum, (b) Lysosomes, (c) Mitochondria, (d) Myelin sheets Introduction Cardiolipin is a unique phospholipid that plays […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Role of FEN-1 in Degrading RNA Primers During Eukaryotic DNA Replication
25. During eukaryotic replication, ________ degrades the RNA primer by 5’ – 3’ exonuclease activity. Options:- (a) DNA polymerase V, (b) FEN-1, (c) RNAseH1, (d) Topoisomerase IIB Introduction DNA replication […]
