List of practice Questions

Cocaine is obtained from

Choose the option that correctly matches the animal with its lifespan.

Cell placed in hypertonic solution is shown by

Calculate emf of the following cell at 25?? if value of $E^o_{cell}$ is 4 V (Given $\frac {RT}{F} \, ln\, 10 = 0.06):$ $M | M^{2+} _{0.01}|| M^{2+} _{0.0001}| M$

Insulin forms hormone receptor complex which regulate gene expression. Insulin is a peptide hormone which can easily pass cell membrane to interact with hormone-receptor complex.

Human male ejaculates about $50-100$ million sperms during a coitus. For normal fertility at least $40$ percent sperms must have normal shape and size.

Annual rings are the bands of

Identify the organism shown in the given diagram.

Find the correct palindromic sequence for the given DNA segment. 5'ATTGCAAT3'

Match the following. Column I Column II

Refer to the given diagram and choose the correct option for it.

Identify a, b and c

Which of the following cannot be used for direct gene transfer?

Select the correctly matched pair.

Animal of which phylum have hooks and suckers and are endoparasite on other animals

An object floats in water with 10% of its volume outside and in oil 30% of its volume outside. The specific gravity of the oil is

A semicircular arc of radius r and a straight wire along the diameter, both are carrying same current i. Find out magnetic force per unit length at point P.

A pair of fair dice is tossed repeatedly until a sum of four or an odd sum appears. Then the probability that a sum of four appears first is

Which one of the following graphs represents the variation of electric field with distance $r$ from the center of a charged spherical conductor of radius $R$?

Which of the following gives Hell-Volhard-Zelinsky $ (HVZ) $ reaction?

At constant pressure, the heat of formation of a compound is not dependent on temperature, when

In the following circuit, what are P and Q?

The unit of equivalent conductivity is

A gun applies a force F on a bullet which is given by $F = (100 - 0.5 10^5 \times t )N$. The bullet emerges out with speed $400 \,m/s^{-1}$. Then find out the impulse exerted till force on bullet becomes zero

The radius of gyration of a thin uniform circular disc (of radius R) about an axis passing through its centre and lying in its plane is