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

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

The idea of mutations was brought forth by :

A test cross is carried out to :

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

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

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

Which one of the following statements is wrong?

What is the function of germ pore?

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

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

A fall in glomerular filtration rate (GFR) activates

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

Vernalization simulates flowering in

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

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

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

Which one of the following biomolecules is correctly characterized?

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

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

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

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

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

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

Which one of the following pairs is wrongly matched?

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

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

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

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

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

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

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 structures is an organelle within an organelle ?

Which one of the following cellular parts is correctly described ?

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

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

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

As compared to a dicot root, a monocot root has

Sacred groves are specially useful in

Select the correct statement about biodiversity :

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

The second stage of hydrosere is occupied by plants like

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

Cuscuta is an example of :

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

What is it that forms the basis of DNA Fingerprinting ?

The first clinical gene therapy was given for treating -

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

In genetic engineering, the antibiotics are used

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

Biolistics (gene-gun) is suitable for -

The domestic sewage in large cities :

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

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

In gobar gas, the maximum amount is that of :

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

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

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

Which of the following exhibits only + 3 oxidation state?

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

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

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

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

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

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

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

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

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

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

Consider the following reaction The product A is

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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