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Which one of the following population interactions is widely used in medical science for the production of antibiotics?
Match List-I with List-II regarding the site of occurrence of respiratory stages: List-I A. Citric acid cycle B. Glycolysis C. Electron transport List-II I. Cytoplasm II. Mitochondrial matrix IV. Inner mitochondrial membrane
Consider the following reactions: (i) $H^+(aq) + OH^-(aq) \rightarrow H_2O(l); \Delta H = -x_1 \text{ kJ mol}^{-1}$ (ii) $H_2(g) + \frac{1}{2}O_2(g) \rightarrow H_2O(l); \Delta H = -x_2 \text{ kJ mol}^{-1}$ (iii) $CO_2(g) + H_2(g) \rightarrow CO(g) + H_2O(l); \Delta H = -x_3 \text{ kJ mol}^{-1}$ (iv) $C_2H_5(g) + \frac{5}{2}O_2(g) \rightarrow 2CO_2(g) + H_2O(l); \Delta H = -x_4 \text{ kJ mol}^{-1}$ Enthalpy of formation of $H_2O(l)$ is:
Two bodies are projected with the same velocity. If one is projected at an angle of $30^{\circ}$ and the other at an angle of $60^{\circ}$ to the horizontal, the ratio of the maximum heights reached is:
In which one of the following, both autogamy and geitonogamy are prevented?
One of the legal methods of birth control is:
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis?
Which of the following is an abortion pill?
If a female having gene for haemophilia and colour-blindness on one X-chromosome marries a normal male, then what are the chances in their offspring?
A proton and an $\alpha$-particle both enter a region of uniform magnetic field $B$, moving at right angles to the field. If the radius of circular orbits for both particles is equal and the kinetic energy acquired by the proton is $1\text{ MeV}$, the energy acquired by the $\alpha$-particle will be:
The formation of a solution from two components can be considered as: (i) Pure solvent → separated solvent molecules, ∆H₁ (ii) Pure solute → separated solute molecules, ∆H₂ (iii) Separated solvent and solute molecules → solution, ∆H₃ The solution so formed will be ideal if:
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): ATP is used at two steps in glycolysis. Reason (R): First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate. In the light of the above statements, choose the correct answer from the options given below:
What is the role of NAD+ in cellular respiration?
MTP is practised mainly to:
A lady is diagnosed to have both her fallopian tubes blocked. What ART can help her to conceive a child?
An infinitely long straight conductor carries a current of $5\text{ A}$ as shown. An electron is moving with a speed of $10^5\text{ m/s}$ parallel to the conductor. The perpendicular distance between the electron and the conductor is $20\text{ cm}$ at an instant. Calculate the magnitude of the force experienced by the electron at that instant.
A millivoltmeter of $25 \text{ mV}$ range is to be converted into an ammeter of $25 \text{ A}$ range. The value (in ohm) of necessary shunt will be:
Select the correct statements with respect to pleiotropism:
Condoms are barriers that cover:
A car accelerates from rest at a constant rate $\alpha$ for some time, after which it decelerates at a constant rate $\beta$ and comes to rest. If the total time elapsed is $t$, then the maximum velocity acquired by the car is: