Which one of the following organisms is scientifically correctly named, correctly printed according to the internationa

In the five kingdom classification, Chlamydomonas and Chlorella have been included in

Which one of the following pairs is wrongly matched?

Read the following five statements (A - E) and answer as asked next to them. (A)   In Equisetum, the fema

How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Stre

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

Which one of the following categories of animals, is correctly described with no single exception in it?

Which one of the following organisms is correctly matched with its three characteristic?

How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, C

Which one of the following biomolecules is correctly characterized?

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at

For its action, nitrogenase requires

Read the following four statements (A $$-$$ D). phosphorylation involve uphill transport of protons across the membrane.

Through their effects on plant growth regulators, what do the temperature and light control in the plants?

Vernalization simulates flowering in

Which one of the following generally acts as an antagonist to gibberellins?

For its activity, carboxypeptidase requires

Where do certain symbiotic microorganisms normally occur in human body?

Which one of the following human organs is often called the ''graveyard'' of RBCs?

A fall in glomerular filtration rate (GFR) activates

Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous

Which one of the following characteristics is common both in humans and adult frogs?

What is the function of germ pore?

Which one of the following statements is wrong?

Plants with ovaries having only one or a few ovules, are generally pollinated by

The secretory phase in the human menstrual cycle is also called :

Represented below is the inheritance pattern of the certain type of traits in humans. Which one of the following conditi

A test cross is carried out to :

The idea of mutations was brought forth by :

Identify the molecules (a) and (b) shown below and select the right option giving their source and use.

Green revolution in India occurred during -

In gobar gas, the maximum amount is that of :

Read the following four statements (A-D) : (A) In transcription, adenosine pairs with uracil (B) Regulation of lac oper

Consider the following four statements (a-d) and select the option which includes all the correct ones only : (a) Singl

The domestic sewage in large cities :

Biolistics (gene-gun) is suitable for -

Which one of the following represents a palindromic sequence in DNA ?

In genetic engineering, the antibiotics are used

The figure below shows three steps (A, B, C) of Polymerase Chain Reaction (PCR). Select the option giving correct identi

The first clinical gene therapy was given for treating -

What is it that forms the basis of DNA Fingerprinting ?

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)

Cuscuta is an example of :

Identify the likely organisms (a), (b), (c) and (d) in the food web shown below :

The second stage of hydrosere is occupied by plants like

The rate of formation of new organic matter by rabbit in a grassland, is called :

Select the correct statement about biodiversity :

Sacred groves are specially useful in

As compared to a dicot root, a monocot root has

The supportive skeletal structures in the human external ears and in the nose tip are examples of

Given below is the diagrammatic sketch of a certain type of connective tissue. identify the parts labeled A, B, C and D

The four sketches (A, B, C and D) given below, represent four different types of animal tissues. Which one of these is c

Which one of the following cellular parts is correctly described ?

Which one of the following structures is an organelle within an organelle ?

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal preg

Which one of the following pairs of chemical substances, is correctly categarised ?

Which one of the following sets of items in the option A – D are correctly categorized with one exception in it ?

Read the following four statements (A-D) : (A) Colostrum is recommended for the new born because it is rich in antigen

Which one of the following statements is correct with respect to immunity?

Which one of the following is a wrong statement regarding mutations ?

The orbital angular momentum of a p-electron is given as

During change of O2 to O$$_2^{ - }$$ ion, the electron adds on which one of the following orbitals ?

Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them

A certain gas takes three times as long to effuse out as helium. Its molecular mass will be

For real gases van der Waals equation is written as $$\left( {p + {{a{n^2}} \over {{V^2}}}} \right)$$ (V $$-$$ nb) = n R

Equal volumes of two monoatomic gases, A and B at same temperature and pressure are mixed. The ratio of specific heats (

Given that the equilibrium constant for the reaction, 2SO2(g) + O2(g) $$\rightleftharpoons$$ 2SO3(g) has a value of 27

Given the reaction between 2 gases represented by A2 and B2 to give the compound AB(g), A2(g) + B2(g) $$\rightlefthar

Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?

In the replacement reaction The reaction will be most favourable if M happens to be

Which of the following compounds can be used as antifreeze in automobile radiators?

Consider the reaction : RCHO + NH2NH2 $$ \to $$ RCH $$=$$ N $$-$$ NH2 What sort of reaction is it?

Which of the following compounds will give a yellow precipitate with iodine and alkali?

Consider the following reaction The product A is

An organic compound (C3H9N) (A), when treated with nitrous acid, gave an alcohol and N2 gas was evolved. (A) on warming

Which one of the following sets forms the biodegradable polymer?

Structure of a mixed oxide is cubic close packed (ccp). The cubic unit cell of mixed oxide is composed of oxide ions. On

Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 25oC are 200 mm Hg and 41.5 mm Hg respectively. Va

Standard reduction potentials of the half reactions are given below : F2(g) + 2e$$-$$ $$ \to $$ 2F$$-$$(aq) ;  &

The Gibb's energy for the decomposition of Al2O3 at 500oC is as follows $${2 \over 3}$$ Al2O3 $$ \to $$ $${4 \over 3}$

Molar conductivities $$\left( {\Lambda _m^o} \right)$$ at infinite dilution of NaCl, Hcl and CH3COONa are 126.4, 425.9 a

Activation energy (E$$a$$) and rate constants (k1 and k2) of a chemical reaction at two different temperatures (T1 and T

In which of the following arrangements the given sequence is not strictly according to the property indicated against it

Which one of the following does not correctly represent the correct order of the property indicated against it?

Four successive members of the first series of the transition metals are listed below. For which one of them the standar

The catalytic activity of transition metals and their compounds is ascribed mainly to

Which of the following exhibits only + 3 oxidation state?

Chloroamphenicol is an

Low spin complex of d6-cation in an octahedral field will have the following energy

Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the follow

The dimensions of $${\left( {{\mu _0}{\varepsilon _0}} \right)^{ - 1/2}}$$ are

A stone is dropped from a height h. It hits the ground with a certain momentum P. If the same stone is dropped from a he

A car of mass m starts from rest and accelerates so that the instantaneous power delivered to the car has a constant mag

A circular platform is mounted on a frictionless vertical axle. Its radius R = 2 m and its moment of inertia about the a

A car of mass m is moving on a level circular track of radius R. If $$\mu $$s represents the static friction between the

The moment of inertia of a uniform circular disc is maximum about an axis perpendicular to the disc and passing through

Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm and 400 g at x = 70cm. The distance of the c

If $${v_e}$$ is escape velocity and $${v_o}$$ is orbital velocity of a satellite for orbit close to the earth's surface,

Which one of the following plots represents the variation of gravitiational field on a particle with distance r due to a

A slab of stone of area 0.36 m2 and thickness 0.1 m is exposed on the lower surface to steam at 100oC. A block of ice at

An ideal gas goes from state A to state B via three different processes as indicated in the P-V diagram. If Q1, Q2, Q3

The equation of a simple harmonic wave is given by y = 3 sin$${\pi \over 2}$$(50t $$-$$ x), where x and y are in metre

A train moving at a speed of 220 m s$$-$$1 towards a stationary object, emits a sound of frequency 1000 Hz. Some of the

A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the p

Two metallic spheres of radii 1 cm and 3 cm are given charges of $$-$$1 $$ \times $$ 10$$-$$2 C and 5 $$ \times $$ 10$$

The power dissipated in the circuit shown in the figure is 30 watts. The value of R is

A cell having an emf $$\varepsilon $$ and internal resistance r is connected across a variable external resistance R. As

A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field. What should b

A magnetic needle suspended parallel to a magnetic field requires $$\sqrt 3 J$$ of work to turn it through 60o. The torq

The instantaneous values of alternating current and voltage in a circuit are given as $$i = {1 \over {\sqrt 2 }}$$ sin

In a coil of resistance 10 $$\Omega $$, the induced current developed by changing magnetic flux through it, is shown in

The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagatting in

For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material

A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that its enf

Two radiations of photons energies 1 eV and 2.5 eV, successively illuminate a photosensitive metallic surface of work fu

If the momentum of an electron is changed by P, then the de Broglie wavelength associated with changes by 0.5%. The init

The transition from the state n = 3 to n = 1 in a hydrogen like atom results in ultraviolet radiation. Infrared radiatio

The half life of a radioactive nucleus is 50 days. The time invertal (t2 $$-$$ t1) between the time t2 when $${2 \over 3

The input resistance of a silicon transistor is 100 $$\Omega $$. Base current is changed by 40 $$\mu $$A which results i

To get an output Y= 1 in given circuit which of the following input will be correct ?