Q.18 A bat emitting ultrasound at 50 kHz is flying directly towards a solid wall with a speed of 3 ms –1 . Ifthe speed of sound in air is […]
Author: admin
CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
How Many Tons of U-235 Does a 1000 MW Nuclear Power Plant Start With?
Q.17 A nuclear power plant generates 1000 Megawatts (MW) of electrical power and used half of its fuelsupply in 5 years. The reactor uses 235 U with 33% efficiency for […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Understanding Earth’s Axial Tilt and Midnight Sun Area Changes
Q.16 The axis of rotation of the earth makes an angle of 66.5o with the plane containing the Earth’s orbitaround the Sun (called the plane of the ecliptic). If this […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Number of Equatorial Hydrogens in Trans‑Decalin
Q.15 The number of equatorial hydrogens in the following structure is _____ The given structure is a trans‑decalin system with one axial and one equatorial hydrogen on each of the two bridgehead […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Drosophila melanogaster Gametes Chromosome Combinations
Q.14 Drosophila melanogaster is a diploid organism having 8 chromosomes. The number ofcombinations of chromosomes which are possible in its gametes is ____ Drosophila melanogaster, a diploid organism with 8 […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Spectrophotometric Calculation of NAD⁺ and NADH Concentrations Using Beer–Lambert Law
Q.13 A solution containing NAD+ and NADH has an optical density of 0.233 at 340 nm and 1.000 at 260nm. While this solution absorbs at 260 nm, NADH alone absorbs […]
![Q.12 The pH of gastric juice in the stomach is 2.0. However the pH inside the cells that line the stomach is 7.0. For transport of protons from inside the cell to the stomach, the free energy change (∆G) in kJmol –1 at 37 o C is _____ [Assume Universal Gas constant R = 8.314 Jmol –1 K–1 ]](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_52-11.jpg)
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Free Energy Change for Proton Transport Across Gastric pH Gradient
Q.12 The pH of gastric juice in the stomach is 2.0. However the pH inside the cells that line the stomachis 7.0. For transport of protons from inside the cell […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Nematode UNC DPY Dihybrid Cross F2 Percentage
Q.11 Assume that the gene UNC is essential for the coordinated movement of a nematode and that thewild-type allele U is dominant over the mutant allele u. Similarly, the wild-type […]
![Q.10 Let the function \( f: \mathbb{R} \to \mathbb{R} \) be defined by \[ f(x) = \begin{cases} \dfrac{\tan x}{x} & \text{if } x \neq 0; \\ kx & \text{if } x = 0. \end{cases} \] If \( f \) is continuous at \( x = 0 \), then the value of \( k \) must be equal to ____](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_50-11.jpg)
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Continuity of Function \(\tan x / x\) at \(x=0\)
Q.10 Let the function f : ℝ → ℝ be defined by f(x) = f(x) = \[ \begin{cases} \frac{\tan x}{x} & \text{if } x \neq 0, \\ k & \text{if […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
De Moivre’s Theorem Solution & Explanation
Q.9 The value of the complex number (1+i)^150+(1+i)^150 is _____. (1+i)^150 + (1-i)^150 equals 2^151. This complex number problem simplifies using polar form and De Moivre’s theorem.[code_execution] Correct Answer […]
