Which one of the following statements is INCORRECT about facilitated diffusion? (1) Its rate is higher than simple diffusion. (2) The partition coefficient of the solute is irrelevant for it. […]
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DBT BET JRF 2021 Previous Year Questions and Video solution
Flavin as a Two-Electron Carrier in the Electron Transport Chain
39. In the electron transport chain which one of the following can be a two-electron carrier? (a)Cupro proteins (b)Cytochrome (c)Flavin (d)Iron-sulphur proteins (Fe-S cluster) Article: Introduction The electron transport chain […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Labelled DNA Number After One Cell Division
All the DNA strands of a cell containing 4 chromosomes are labelled. After one division how many chromosomes in the daughter cell will have labelled DNA? (1) 1 (2) 2 […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Why Bacteria Are Most Sensitive to Ampicillin During the Log Phase of Growth
36. At which phase of the growth curve are bacteria more sensitive to ampicillin? Options:- (a) Declining phase (b) Lag phase (c) Log phase (d) Stationary Article: Introduction Antibiotics like […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Intermediate Filament Found in the Nucleus is Nuclear Lamins
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? […]
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 […]
