Biotechnology - 2015 Past Year Paper - IIT JAM MCQ

Which among the following contain(s) oxygen- rich blood in the human vascular system?
I. Right ventricle II. Aorta III. Pulmonary vein

Choose the option that lists the correct sequence of steps involved in gene therapy.
P. Injection of expression vector into patient

Q. Wild- type gene is inserted into expression vector

R. Wild- type gene is isolated and cloned

S. Wild- type gene is transcribed and translated in the patient

Cephalin, a biological surfactant, is

The major product(s) produced by gas phase UV irradiation of 2- pentanone is (are)

If a projectile lifts off from the surface of the Earth with a speed of 11.2 km.s–1, then it can escape from the Earth’s gravitational field completely. This is called the escape velocity. If the radius of the Earth were 2 times larger and the mass 8 times larger, then the escape velocity (in km.s–1) would be

Let R be the set of all real numbers. Consider the sets P = {x ∈  R : (x – 1)(x² + 1) = 0}, Q = {x ∈  R : x² – 9x + 2) = 0} and S = {x ∈  R : x = 5y for some y ∈ R} Then the set (P∩ S) ∪ Q contains

The speed of an electron (n ), in the lowest energy orbit in the Bohr model of the Hydrogen atom divided by the speed of light in vacuum (c), is given by (where m is the mass of the electron, M is the mass of the proton, eo  is the permittivity of free space, ao  is the Bohr radius)

In a population growing according to the logistic growth model

Which part of the genomic DNA contains the sequence corresponding to the 5' untranslated region (5' UTR) ?

Which one of the following is NOT TRUE of RNA polymerase II ?

Choose the option that shows the correct pairing of the cellular components with their corresponding function.

An enzyme shows highest activity in the pH range 2.0 - 3.0. At pH 4.0 and pH 7.0, the enzyme exhibits 50% and 1%, respectively, of its highest activity. Which of the following states of an amino acid residue in the catalytic site is most responsible for its activity profile ?

The specific productivity (q^p) of cellulase production by Aspergillus niger follows a linear relationship with the specific growth rate (m) ans is of the form q_p = αm  +  β, where a  and b  are constants.Assuming that the values of a and b  are 0.006 and 25, respectively, which type of product formation kinetics is TRUE ?

Choose the option that shows the correct pairing of the diseases with their corresponding caus ative organisms.

Choose the option that shows the correct pairing of the products with their corresponding microorganisms.

Determine the correctness or otherwise of the following Assertion [a] and Reason [r].Assertion [a]. B cells secrete antibodies against a virus while cytotoxic T cells kill virus-infected cells.Reason [r]. B cells confer active immunity while cytotoxic T cells confer passive immunity.

Which one of the following options shows the correct pairing of the enzyme with its corresponding application ?

The rate constant for the reaction O(g) + O₃(g)→ 2O₂ (g) is 8.0 × 10–15 cm³ molecule–1 s^–1. The rate constant in dm³   mol^–1 s^–1, would be

The UV spectrum of 2- butanone and the UV spectrum of methyl vinyl ketone (MVK) are independently recorded and compared. Among the various lmax, 185 nm, 219 nm, 277 nm and 324nm, the absorption at λ _max= 324 nm is due to

The compound meso 2,3- dibromobutane is obtained by

The major product in the following reaction is

An archaeological sample (remains of an animal) containing ¹⁴C isotope of Carbon is found to give 10 beta decays per minute per gram of Carbon. It is known that the natural abundance of ¹⁴C in organic matter that is in equilibrium with the atmosphere today will give 15 beta decays per minute per gram of Carbon. The half life of ¹⁴C is known to be 5730 years. The estimated age of the sample (in years) is

The minimum light intensity that the human eye can perceive is 10^-10 Wm^-2. The area of the opening of our eye (the pupil) is approximately 4 cm^-2. Consider yellow light with wavelength λ = 600 nm. The number of photons incident on the retina per second at the minimum intensity for the eye to respond is

Three NOT gates are connected in series and the output of the last gate is fed back to the input of the first one as shown in the figure. Each gate has a propagation delay of Td = 1 nano second, which means that the gate requires 1 nano second to change the output after the signal arrives at the input. What is the expected output at point A ?

Let ⁿc_r denote the number Then for n=100, the sum of the series

The lengths of two sides of a triangle are 2 units and 3 units and the angle included by these two sides is 60o. The length of the third side of the triangle will be

If A and B are two skew- symmetric matrices, the matrix AB + BA must be