Mock Test

1. Saffron is obtained from :

2. DNA transposons that carry a pair of terminal repeats and a transposase gene have everything they need to promote their own transposition. These elements are called :

3. Which one of the following falls under "Postmating isolating Mechanisms" ?

4. Species 'A: produces many seeds smaller in size, while species 'B' produces few seeds bigger in size. Selection method followed by species 'A' and 'B' is respectively :

5. Consider the following set function µ on a σ-field :

µ(A)  =  0  if  A  is  empty

= 1 if A is non-empty and finite

= ∞ if A is infinite Then,

6. Which one of the following is true during Hfr x F cross ?

7. Which of the following histones can exist as tetramers in solution ?

8. The complete integral of the partial differential equation f(p, q) = 0 is :

9. Side chains of most of the amino acids present in a native protein;

10. Which one of the following combinations of nutrients follow sedimentary pattern of biogeochemical cycling ?

1. Let ф : G → G’ be a surjective group Then :

2. In a simple linear regression analysis the fitted line using least squares theory will :

3. Let n  be  a  square  free  natural number. Then the quotient ring Q[X]/<X2  –  n>  is  :

4. Consider a single operator equation L = IW representing the relation between angular momentum vector and angular velocity :

5. Suppose f(x, θ) is a probability density function of X for which differentiation under integral sign is permissible

Then  E ƒ d log f (X, θ) is :

6. Which of the following is a quadratic residue modulo  43  ?

7. Define a function f : [0, 1] → R as f (x) = x² + e^x – 2. Then  :

8. Velocity potential function for a steady flow exists, if :

9. Which of the following rings is not noetherian ?

10. Which of the following is an example of the control of the queue discipline ?

1. For repulsive inverse square force, the shape of the orbit is :

2. A projectile is fired with initial velocity v0 making an angle α with the horizontal The range (R) of the projectile is proportional to, (Neglect the air resistance) :

3. The Debye temperature of diamond is 2230 K. The molar heat capacity of diamond at 10 K is :

(R  =  8.314  Jmol–1K–1)

4. The radius of gyration of a rigid body of mass M and moment of inertia I is :

5. The magnitude of magnetic vector potential at a distance r from an ideal magnetic quadrupole is proportional to :

6. Negative feedback for an operational amplifier leads to :

7. Nuclear forces  are  :

8. The wavelength  of  10  MeV  proton

is nearly equal to : (1F = 10–15 meter)

9. The entropy of black-body radiation

is  given  by  S  =   4 σV1/4U3/4  where

3

σ is a constant V is the volume and U is internal energy of the system.

The temperature of the  radiation is :

10. Which of the following is not correct (for number of fundamental modes of vibration) ?

1. An analytical technique in which the temperature difference between the
sample and a non-reactive reference material is monitored is :

2. How many normal modes of vibrations are possible for nitrobenzene molecule ?

3. The X-band EPR spectra of phenyl radical will exhibit.................lines

4. T he vapour pr essur e of 0·5 M aqueous K N O3 solution is 749·7 torr at 100°C.
The activity of water in this solution at 100°C is :

5. The electron gain enthalpy of halogens are in the order

6. The cation of dichloro bis(ethylenediamine) cobalt (III) belongs to D3 symmetry is an example of :

7. The resistance of Hg drops to zero when cooled to:

8. The weight average molar mass (Mw) of a polymer having 50 and 75 molecules
with corresponding molecular mass of 5000 and 6000 g/mol respectively is :

9. Number of stereoisomers possible for the compound, CH3CH = CH—CH(OH)CH= CHCH3 is :

10. Certain volume of He takes 20s to effuse through a porous barrier. The time taken by
same volume of methane gas to effuse under same condition is