53. E class homeotic genes in Arabidopsis thaliana are involved in the formation of: (a) Floral meristem (b) Petals and carpels (c) Sepals & petals (d) Shoot apical meristem Introduction […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
What Are Embryonic Stem Cells and Why Are They Pluripotent?
Embryonic stem cells are 1. unipotent 2. totipotent 3. pluripotent 4. differentiated Introduction Embryonic stem cells (ESCs) have revolutionized the field of developmental biology and regenerative medicine due to their […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding the Inheritance of Colour Blindness: Genotypes of Parents and Offspring
95. Colour blindness (B) in human follows sex-linked recessive mode of inheritance. If a couple with normal colour vision have a colour-blind son. What will be the genotypes of the […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Exploring the Similar Functions of Cryptochrome, Phytochrome, and Other Light-Responsive Proteins
52. Which one of the following combinations signify similar function? (a) Cryptochrome and flurochrome (b) Cryptochrome and phytochrome (c) Cytochrome and cryptochrome (d) Fluorochrome and cytochrome Introduction Light is a […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding the Hershey-Chase Experiment: Detecting Genetic Material in Bacteriophages
94. You have two tubes containing bacteriophage labelled with radioactive phosphorous (tube A) and radioactive Sulphur (tube B) that are devoid of bacteria. You use these bacteriophage to infect separate […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Plasmodium knowlesi: The Emerging Cause of Monkey Malaria in Humans
The malarial parasite that has caused recent outbreaks of Monkey malaria in humans is 1. Plasmodium berghei 2. Plasmodium vivax 3. Plasmodium knowlesi 4. Plasmodium malariae Introduction In recent years, […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Key Differences Between Oxidative Phosphorylation and Photophosphorylation
51. Which one of the following statements is NOT common between oxidativephosphorylation and photophosphorylation? (a) Generation of ATP (b) Involvement of a kinase (c) Involvement of electron transport (d) Involvement […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Gene Mapping and Recombination Frequencies in Genetics
93. A scientist performs a series of experiments to determine the recombination frequencies between the following genes. He acquires the following data: P – Q: 3%; Q – R: 2%; […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Nucleases: The Role of DNase I
50. Which one among the following is a nuclease? (a) DNase I (b) Helicase (c) Ligase (d) Polymerase What is a Nuclease? A nuclease is an enzyme responsible for cleaving […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
How Covalent Bonds Stabilize the Primary Structure of Proteins
The primary structure of a protein is stabilized by 1. the angle formed between plane ABD and plane ACD 2. covalent bond 3. ionic bond 4. hydrogen bonds Introduction […]
