Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Match the following organisms with their respective characteristics : (a) Pila (i) Flame cells (b) Bombyx (ii) Comb plates (c) Pleurobrachia (iii) Radula (d) Taenia (iv) Malpighian tubules Select the correct option from the following : (a) (b) (c) (d) (1) (iii) (ii) (i) (iv) (2) (iii) (iv) (ii) (i) (3) (ii) (iv) (iii) (i) (4) (iii) (ii) (iv) (i)
The graph which shows the variation of the de Broglie wavelength ($\lambda$) of a particle and its associated momentum ($p$) is
Which of the following compounds has the lowest melting point?
In a common-emitter transistor amplifier, the audio signal voltage across the collector is $3\text{ V}$. The resistance of the collector is $3\text{ k}\Omega$. If the current gain is $100$ and the base resistance is $2\text{ k}\Omega$, the voltage and power gain of the amplifier are:
A particle moves so that its position vector is given by $\vec{r} = \cos(\omega t)\hat{x} + \sin(\omega t)\hat{y}$, where $\omega$ is a constant. Which of the following is true?
Nissl bodies are mainly composed of
A body initially at rest and sliding along a frictionless track from a height $h$ just completes a vertical circle of diameter $AB = D$. The height $h$ is equal to:
The fraction of the original number of radioactive atoms that disintegrates (decays) during the average lifetime of a radioactive substance will be:
Match the following genes of the Lac operon with their respective products : (a) i gene (i) $\beta$-galactosidase (b) z gene (ii) Permease (c) a gene (iii) Repressor (d) y gene (iv) Transacetylase. Select the correct option.
Length cannot be measured by
What is the amount of work done by an ideal gas, if the gas expands isothermally from $10^{-3} \text{ m}^3$ to $10^{-2} \text{ m}^3$ at $300 \text{ K}$ against a constant pressure of $10^5 \text{ N m}^{-2}$?
MTP is:
A particle of mass $m$ is driven by a machine that delivers a constant power of $k$ watts. If the particle starts from rest, the force on the particle at time $t$ is:
The method used to remove temporary hardness of water is :
Menstrual flow occurs due to the lack of:
The number of possible natural oscillations of the air column in a pipe closed at one end of a length of $85 \text{ cm}$ whose frequencies lie below $1250 \text{ Hz}$ is: (velocity of sound $340 \text{ ms}^{-1}$)
Match the following hormones with the respective disease: (a) Insulin (i) Addison's disease (b) Thyroxin (ii) Diabetes insipidus (c) Corticoids (iii) Acromegaly (d) Growth Hormone (iv) Goitre (v) Diabetes mellitus. Select the correct option.
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
Match the following columns and select the correct option. Column-I: (a) Clostridium butylicum, (b) Trichoderma polysporum, (c) Monascus purpureus, (d) Aspergillus niger. Column-II: (i) Cyclosporin-A, (ii) Butyric Acid, (iii) Citric Acid, (iv) Blood cholesterol lowering agent.
If the distance between two consecutive base pairs is $0.34$ nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately