List of top Questions asked in IIT JAM BT

A linear DNA contains five restriction sites for EcoRI and three restriction sites for BamHI. The number of fragments that will be generated after digestion with EcoRI is .............
The electric field and capacitance of a capacitor in the absence of dielectric material are $E$ and $C$, respectively. When the capacitor is filled with a dielectric material, the electric field and capacitance become $E'$ and $C'$, respectively. Which of the following is(are) correct?
Antigen and antibody interaction is shown by the following scheme
\[ \text{Ab} + \text{Ag} \; \xrightleftharpoons[k_{-1}]{k_{1}} \; \text{Ab-Ag} \] Where Ab is antibody, Ag is antigen and Ab–Ag is antigen–antibody complex. The values of $k_{1}$ and $k_{-1}$ are $5 \times 10^{5}\ \mu\mathrm{M}^{-1}\mathrm{s}^{-1}$ and $2 \times 10^{-2}\ \mathrm{s}^{-1}$ respectively. The dissociation constant for the complex is .............. nM.
The elements with atomic numbers 19, 37 and 55
Fehling’s solution
Which of the following point(s) lies(lie) on the plane $2x + 3y + z = 6$?
Kinetic theory of an ideal gas is based upon the following assumption(s)
Which of the following organs are correctly paired with their function?
The $\Delta G^\circ$ for homolactic fermentation converting glucose to lactate is –196 kJ mol$^{-1}$. If $\Delta G^\circ$ for the formation of ATP is +30.5 kJ mol$^{-1}$, then
Bacterial plasmid genes of non-chromosomal origin are associated with
Two inductors P and Q having inductance ratio 1:2 are connected in parallel in an electric circuit. The energy stored in the inductors P and Q are in the ratio
A body X of mass $M$ moving with velocity $v$ hits a stationary body Y of mass $m$. If $M \gg m$ and X moves with velocity $v'$ after the collision, then the velocity of Y after an elastic collision is
The cells involved in allergic reactions and containing surface receptors of IgE antibodies and histamine are
Which of the following is(are) INCORRECT in the regulation of the trp operon?
If one of the diameters of a circle has end points $(2,0)$ and $(4,0)$, then the equation of that circle is
If $P = \{1, 2, -1, 3\}$, $Q = \{0, 4, 1, 3\}$ and $R = \{1, 6, 7\}$, then $P \cap (Q \cup R)$ =
The position of a particle along the y-axis is $y = P t^4 + Q$. For dimensional consistency, the dimension of $P$ in terms of length [L] and time [T] is
In metal–carbonyl complexes, the $\pi$-back bonding is
If $u(x)$ and $v(x)$ are differentiable at $x=0$, and if $u(0)=5$, $u'(0) = -3$, $v(0) = -1$ and $v'(0) = 2$, then the value of $\dfrac{d}{dx}\left(uv + \frac{u}{v}\right)$ at $x = 0$ is
Two dice are thrown simultaneously. The probability that the sum of the numbers obtained is divisible by 7 is
The correct sequence of the following events in the human female reproductive cycle is
I: Secretion of FSH
II: Growth of corpus luteum
III: Growth of follicle and oogenesis
IV: Ovulation
V: Sudden increase in the levels of LH
For an autocatalytic second-order reaction R $\rightarrow$ P, the rate law is
[where v is the rate of the reaction and k is the rate constant]
Which of the following is NOT an example of an adaptive defense mechanism against predation?
Match the entries in Group I with those in Group II
Group I
P) Nucleolus
Q) Sphaerosomes
R) Peroxisomes
S) Plasmodesmata
Group II
1) lipid storage
2) breakdown of fatty acids
3) transport of macromolecules
4) RNA synthesis
The nitrogenase of diazotrophs