189. VirA and Virg form a two component signaling system during Agrobacterium infection in plants. In an experiment, VirG was mutated resulting in non-functional VirG protein. Which one of the […]
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DBT BET JRF 2018 Previous Year Questions and Video solution
Genetic Mapping and Marker-Assisted Selection: Understanding Crossovers in a Plant Progeny
155. Assume that a marker M1 is present 5 cM away on one side of a gene “X” (a desirable allele of the gene), while marker M2 is present 10 […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Interfacial Area Calculation in a Bioreactor with Given Gas Hold-Up and Bubble Diameter
188. If in a bioreactor, the gas hold up (𝜀) is 0.1 and the average diameter of the air bubbles is 1 mm; then the interfacial area (of the air […]
DBT BET JRF 2018 Previous Year Questions and Video solution
Understanding Ordered Tetrad Analysis in Genetic Linkage
154. In an ordered tetrad analysis, if the two genes are not linked, the ………… will be almost equal. 1. Parental ditype and non-parental ditype 2. Parental ditype and tetratype […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Abundance of Soluble Cations in Saline Water Bodies
187. Arrange these soluble cations (𝑁𝑎, 𝐶𝑎,𝐾, 𝑀𝑔) in ascending order of abundance of soluble cations found in saline water bodies: A. 𝑁𝑎 > 𝑀𝑔 > 𝐶𝑎 > 𝐾 B. […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Hydrophobic Patches on Protein Surfaces: What Do They Indicate?
186. Proteins usually have hydrophobic interiors or cores and hydrophilic exteriors. If a protein comprises hydrophobic patches on its outer surface, what can it mean? A. The protein is unstable […]
DBT BET JRF 2018 Previous Year Questions and Video solution
Understanding Linkage Disequilibrium (LD) Decay in Genetics
152. Linkage disequilibrium (LD) decay is: 1. Much rapid in out-crossing than in selfing species 2. Much rapid in selfing than in out-crossing species 3. Equal in selfing and out-crossing […]
DBT BET JRF 2022 Previous Year Questions and Video solution
What Are Fucoidans? Composition and Source Explained
185. Identify the correct statement about Fucoidans: A. Fucoidans are iron containing proteins, found in blue green algae. B. Fucoidans are sulphur containing amino acids found in marine derived proteins. […]
DBT BET JRF 2018 Previous Year Questions and Video solution
Title: Understanding Markers in Quantitative Trait Locus (QTL) Studies: The Role of Background Markers
151. A marker present outside the targeted QTL used to check the crossing over is called: 1. Peak marker 2. Background marker 3. Recombinant marker 4. Foreground marker Question A […]
DBT BET JRF 2018 Previous Year Questions and Video solution
Understanding Nondisjunction and X-Linked Traits: A Case of Color Blindness
150. Color blindness in human beings is an X-linked trait. A color-blind man has a 45, X daughter who is also color-blind. The nondisjunction that leads to the 45, X […]
