Which one of the following intermediate filament proteins is present in the nucleus? (1) Vinculin (2) Lamin (3) Nestin (4) Laminin Which Intermediate Filament Protein Is Found in the Nucleus? […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
How Do Bacteria Protect Themselves from Phages? Understanding the Role of Endonucleases
Bacteria protect themselves from phages by producing the following enzymes which fragment the phage genome 1. endonucleases 2. methylases 3. topoisomerases 4. exonucleases How Do Bacteria Protect Themselves from Phages? […]
DBT BET JRF 2021 Previous Year Questions and Video solution
The Basis of DNA Fingerprinting is Repetitive Sequences
35. DNA fingerprinting for forensic investigation is based on: (a)Exon sequences (b)Intron sequences (c)Promoter sequences (d)Repetitive sequences The Basis of DNA Fingerprinting is Repetitive Sequences DNA fingerprinting has revolutionized […]
DBT BET JRF 2021 Previous Year Questions and Video solution
How Restriction Endonucleases Protect Bacteria from Lambda Phage Invasion
Which nuclease of bacteria is responsible for degrading the genome of the invading lambda phage? (a)Exonuclease (b)Phagodegradase (c)Restriction endonuclease (d)Topoisomerase How Restriction Endonucleases Protect Bacteria from Lambda Phage Invasion […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Immune Tolerance Is Lack of Reactivity to Self HLA
Lack of reactivity to self HLA is known as? (1) Autoimmunity (2) Complement fixation (3) Clonal selection (4) Tolerance What Is the Lack of Reactivity to Self HLA Called? The […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Which Enzymes Are Critical for Genome Replication? A Deep Dive into Key Enzymes
Which of the following is/are critical for genome replication? 1. all of the given options are correct 2. polymerase 3. ligage 4. helicase Which Enzymes Are Critical for Genome […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Determine the Molecular Mass of a Protein
Molecular mass of a protein CANNOT be determined by: (1) MALDI-TOF (2)Gel filtration Chromatography (3) Chromatofocusing (4) SDS-PAGE How to Determine the Molecular Mass of a Protein: Methods and Techniques […]
DBT BET JRF 2021 Previous Year Questions and Video solution
How Glucose Causes Catabolite Repression of the lac Operon in Bacteria
Which one of the following molecules causes catabolite repression of lac operon? (a)Arabinose (b)Galactose (c)Glucose (d)Lactose Catabolite Repression of the lac Operon in Bacteria by Glucose The lac operon […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Many Chromatids Are Present in Metaphase After Telophase?
If a cell carries 21 pairs of chromosomes just after completion of mitotic telophase, how many chromatids will be there in metaphase? (1) 21 (2) 42 (3) 84 (4) 168 […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Immune System Cells Neutrophils Platelets B- cells T-cells and Their Functions
26. Match the components of list 1 with those in list II List I […]
