List of practice Questions

Length of the spinal cord in humans is:

Kwashiorkor disease is due to :-

In Ti-plasmid, which of the following is removed:

Let $x \, \in \, R$ and let $P = \begin{bmatrix}1&1&1\\ 0&2&2\\ 0&0&3\end{bmatrix},\quad Q = \begin{bmatrix}2&x&x\\ 0&4&0\\ x&x&6\end{bmatrix}$ and $R = PQP^{-1}$. Then which of the following options is/are correct?

Find force per unit length at P.

Energy of electron (in eV) in 2nd orbit of He ion ?

Correct order of basic strength is :

Choose the correct option

Chimeric DNA is

Calculate the mean % error in five observations : 80.0, 80.5, 81.0, 81.5, 82

Calculate emf of cell at 25?C Cell notation $M\left|M^{2+}_{0.01}\right|\left|M^{2+}_{0.00001}\right|M$ If value of E is 4 volt (Given $\frac{RT}{F}$ in 10 = 0.06)

Virus free plants can be generated through

A variable line passes through the fixed point ($\alpha,\,\beta$). The locus of the foot of the perpendicular from the origin on the line is,

A square conducting loop is placed near an infinitely long current carrying wire with one edge parallel to the wire as shown in the figure. If the current in the straight wire is suddently halved, which of the following statements will be true? "The loop will ....... "

A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emitted will be

A proton and an $\alpha$-particle are simultaneously projected in opposite directions into a region of uniform magnetic field of $2\, mT$ perpendicular to the direction of the field. After some time it is found that the velocity of proton has changed in direction by $90^{\circ}$. Then at this tune, the angle between the velocity vectors of proton and $\alpha$ - particle is

What will be the DNA content and number of chromosomes in a cell, after S phase as compared to the gamete of the same organisms?

Which of the following is similar in DNA of elephant and mango tree?

A normal man and a normal woman both having one of their parent albino, if get married then what is the probability of their child of being albino?

Which one is only found in plant?

Which of the following is not always present in monocotyledonous seeds?

Which of the following represent zygomorphic symmetry?

Which of the following statements about $CO_3^{2-}$ ion is correct?

Which of the following transition elements have melting point below $500^\circ$ C?

Which will release $NH_3$ on Reaction with $NaOH$.