The motifs commonly found in the core promoter of eukaryotic protein coding genes are: A. TATA and Pribnow box B. Motif ten element and TATA C. BRE and Kozak consensus […]
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DBT BET JRF 2022 Previous Year Questions and Video solution
Time Taken by a Train to Overtake a Man Running in the Same Direction
A 100 m long train is running at a speed of 68 km/h. A man is also running in the same direction with a speed of 8 km/h. In what […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Number Series Logic: What Comes After 71, 76, 69, 74, 67, 72
Add one more element to the given number series: 71, 76, 69, 74, 67, 72: A. 77 B. 65 C. 80 D. 76 Understanding the Pattern in the Number […]
![Which one of the following statements is true with respect to optical activity? A. A relationship exists between the (R) and (S) configurations of enantiomers and the direction [(+) or (-)] in which they rotate plane-polarized light. B. Equimolar mixture of D and L isomers of the same compound will be optically active. C. Meso compounds that are optically inactive may contain stereogenic centers or chiral centers. D. Optical activity is independent of temperature.](https://www.letstalkacademy.com/wp-content/uploads/2025/04/29-2.jpg)
DBT BET JRF 2022 Previous Year Questions and Video solution
Why Meso Compounds Can Be Optically Inactive Despite Chirality
Which one of the following statements is true with respect to optical activity? A. A relationship exists between the (R) and (S) configurations of enantiomers and the direction [(+) or […]
DBT BET JRF 2022 Previous Year Questions and Video solution
How to Calculate Potassium Concentration in a Drug Formulation
While measuring the potassium concentration in a drug formulation, the technologist took 10 𝜇𝑙 of the sample and mixed it with 90 𝜇𝑙 of test buffer. From the resulting […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Mixing Solutions: Sodium Acetate and Glucose
If you mixed 20 mL of 50 mM sodium acetate (NaOAc) with 30 mL of 25 mM glucose, what would be the concentration of each in the final solution? […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Intersection Points of a Function and Its Inverse f(x) = x² − 6
The function 𝑦 = 𝑓(𝑥) = 𝑥 2 − 6 is plotted along with its inverse function 𝑦 = 𝑓−1(𝑥), where essentially the x & y axis are interchanged. These […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Original Fraction After Percentage Changes
If the numerator of a fraction is increased by 15% and its denominator is decreased by 8%, the new fraction becomes 15/16. Find the original fraction. A. 4/3 B. 15/4 […]
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How to Calculate Volume by Rotating a Line Around the Y-Axis
The line 𝑦 = 2𝑥 from 𝑥 = 0 to 1 is rotated around the y-axis. The volume generated is: A. 1/2 𝜋 B. 2/3 𝜋 C. 3/4 𝜋 D. […]
DBT BET JRF 2022 Previous Year Questions and Video solution
Calculate Blood Glucose Concentration Using the Glucose Oxidase Method
You are measuring blood glucose level by glucose oxidase method. Following are the absorbance values that you got for the standard and the test sample. Determine the glucose concentration […]
