70. Which one of the following statements are TRUE regarding specialized embryonic structures peculiar to the grass family? A. Thecotyledon has been modified by evolution to form an absorptive organ […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
The Most Sustainable Agricultural Practice for Maintaining Soil Fertility
To maintain soil fertility, the most sustainable agricultural practise is 1. crop rotation 2. burning the crop waste in the field 3. repeated use of fertilizers 4. growing same crop […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Flowering in Winter Annual Arabidopsis: The Role of Cold Treatment
69. Which one of the following treatments is required for flowering in a winter annual typeof Arabidopsis plants? (a) A short pulse of cold temperature (b) A short pulse of […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Specific Sequence-Based PCR Analysis in Marker-Assisted Selection: Identifying the Right Marker Set
107. Which one of the following sets is an example of specific sequence-based PCR analysis in marker assisted selection? (1) RAPD, DAF, AP-PCR P1 P2 F1 (2) SCAR, SSR, COS […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Selection Markers in Transgenic Plants: The Role of Hygromycin Phosphotransferase
68. Which one of the following can be used as a selection marker for developing transgenicplants? (a)□galactosidase (b) □glucoronidase (c) Green fluorescent protein (d) Hygromycin phosphotransferase Understanding Selection Markers in […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Which Post-Translational Modifications Do Not Occur in Plastids?
Which type of post- translational modification does not occur in plastids? 1. s-nitrosylation 2. glycosylation 3. acetylation 4. phosphorylation Introduction Post-translational modifications (PTMs) are essential for regulating the function, stability, […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Key Characteristics of Skotomorphogenic Development in Plants
67. Which one of the following is NOT a characteristic feature of skotomorphogenicdevelopment? (a) Apical hook (b) Closed cotyledons (c) Expanded leaves (d) Long hypocotyls What Is Skotomorphogenic Development in […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Where is Sphingolipid Synthesis Completed in the Cell?
Synthesis of which of the following liquids is completed in the Golgi bodies 1. phosphatidyserine 2. phosphatidylcholine 3. sphingolipids 4. cholesterol Introduction Lipids are essential molecules for cellular structures and […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What is siRNA and How Does it Cause Short-Term Silencing of Protein-Coding Genes?
Small/short interfering RNA (siRNA) is a commonly used RNA tool that causes 1. duplication of protein encoding genes 2. delection of protein encoding genes 3. permanent silencing of protein coding […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Why Bt Protein in GM Crops Is Safe for Humans
104. The Bt protein employed for raising insect-resistant plants is not toxic to humans because: (1) it is inactive under acidic pH (2) it is inactive under basic pH (3) […]
