Black rust of wheat is caused by

A student observed an algae with chlorophyll a, b and phycoerythrin, it should belong to

In ferns, meiosio takes place at the time of

Plant group with largest ovule, largest tree, and largest gametes is

Cleavage in mammals is

Which of the following animals have scattered cells with cell - tissue grade organisation?

Similarly in Ascaris lumbricoides and Anopheles stephensi is

What happens if bone of frog is kept in dilute hydrochloric acid?

Which of the following characters is absent in all chordates?

What is true for mammalia?

Pneumatophores are found in

Hair found in the inflorescence of Zea mays are the modification of

Geocarpic fruits is

Role of enzyme in reactions is to/as

Which factor is responsible for inhibition of enzymatic process during feedback?

Enzymes are not found in

ATP is

Which of the following have carbohydrate as prosthetic group?

Spindle fibre unite with which structure of chromosomes?

In which stage of cell cycle, DNA replication occurs?

The movement of ions against the concentration gradient will be

Mg is a component of

When the plants are grown in magnesium deficient but urea rich soil, the symptoms expressed are

Plants take zinc in the form of

For assimilation of one CO2 molecule, the enerrgy required in from of ATP and NADPH2 are

For the synthesis of one glucose molecule the Calvin cycle operates for

Which is the first CO2 acceptor enzyme in C4 plants?

The first step for initiation of photosynthesis will be

If the apical bud has been removed then we observe

By which action a seed coat becomes permeable to water

Which hormone is responsible for fruit ripening?

Essential amino acid is

Which food should be eaten during deficiency of rhodopsin in eyes?

A person who is eating boiled potato, his food contains the component

In mammals milk is digested by the action of

Differennce between pulmonary artery and pulmonary vein is that, the pulmonary artery has

In which point, pulmonary artery is different from pulmonary vein?

Which statement is true for WBC?

Concentration of urine depends upon which organ?

Conversion of ammonia to urea is done by

Sternum is connected to ribs by

What is the name of joint between ribs and sternum?

Bone related with skull is

Depolarization of axolema during nerve conduction takes place because of

Melatonin is secreted by

Which gland secretes odorous secretion in mammals?

MSH is secreted by

Eight nucleated embryo sac is

Endosperm is formed during the double fertilization by

Blastopore is the pore of :

What is the work of progesteron which is present in oral contraceptive pills :

What is the work of copper T :

According to mendelism which character is showing dominance ?

Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered :

Mongolian idiots are due to trisomy in 21st chromosome is called :

Erythroblastosis foetalis is caused when :

In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klienfelter's sy

Which of the following is initiation codon ?

Method of DNA replication in which two strands of DNA separates and synthesize new strands

Anticodon occurs in :

Length of one loop of B- DNA :

In three dimensional view the molecule of t-RNA is :

Similarity in DNA and RNA :

Which is not a vestigial organ in man ?

Character which is closely related to human evolution

Which evidence of evolution related to Darwin's finches ?

Homo sapiens have evolved in

Who is directly related to man ?

Which is the most important factor for continuity of a species from evolutionary point of view ?

Which disease of man is similar with cattle's, bovine spongyform encephalopathy ?

Which is showing accurate pairing ?

Saline solution is given to patients of Cholera because

Coconut milk is used in tissue culture in which present :

Which statement is correct ?

Which aquatic fern is used to increase the yield in paddy crop ?

Which of the following is used to manufacture ethanol from starch ?

The bacteria generally used for genetic engineering is :

Plasmid has been used as vector because :

Which is the reason for highest biomass in aquatic ecosystem ?

Viable material of endangered species can be preserved by :

Indri-indri lemur is found in :

Which is the cause of damage to relative biological effectiveness ?

What happens in plants during vascularisation ?

Characteristic of simple epithelium is that they

Proteoglycan in cartilages which is part of polysaccharide is

Which pair is correct ?

Primary function of enteronephric nephridia of Pheretima :

Which of the following ribosomes are engaged in protein synthesis in animal cell ?

Lysosome contains :

Function of telomeres in nucleus is

Which cell organelle is concerned with glycosylation of protein ?

In quantitative analysis of second group in laboratory, H2S gas is passed in acidic medium for precipitation. When Cu2+

Volume of CO2 obtained by the complete decomposition of 9.85 g of BaCO3 is

Oxidation numbers of A, B, C are + 2, +5 and $$-$$2 respectively. Possible formula of compound is

For given energy, E = 3.03 $$ \times $$ 10$$-$$19 Joules corresponding wavelength is (h = 6.626 $$ \times $$ 10$$-$$34

Isoelectronic species are

Which statement is wrong ?

d$$\pi $$ $$-$$ p$$\pi $$ bond present in

Which species does not exhibit paramagnetism?

Right order of dissociation energy N2 and N2+ is

Which of the following expressions correctly represents the relationship between the average molar kinetic energy, KE, o

Cell reaction is spontaneous when

The entropy change in the fusion of one mole of a solid melting at 27oC (latent heat of fusion is 2930 J mol–1) is :

2Zn + O2 $$ \to $$ 2ZnO;  $$\Delta $$Go = $$-$$ 616 J 2Zn + S2 $$ \to $$ 2ZnS;  $$\Delta $$Go = $$-$

For the reaction, C2H5OH(l) + 3O2(g) $$ \to $$ 2CO2(g) + 3H2O(l) which one is true

Conjugate acid of NH2$$-$$ is

Which statement is wrong about pH and H+?

For any reversible reaction, if we increase concentration of the reactants, then effect on equilibrium constant

Equilibrium constant Kp for following reaction MgCO3(s) $$\rightleftharpoons$$ MgO(s) + CO2(g)

Which reagent converts propene to 1-propanol ?

Which is maximum stable?

In Friedel-Crafts reaction , toluene can be prepared by

Increasing order of electrophilic substitution for following compounds

Dihedral angle in staggered form of ethane is

2-Butene shows geometrical isomerism due to

First product of the reaction between RCHO and NH2NH2 is

Reduction by LiAlH4 of hydrolysed product of an ester gives

Benzoic acid may be converted into ethyl benzoate by reaction with :

Polarisation in acrolein can be described as

then A is

$$\alpha $$ -$$D$$-glucose and $$\beta $$-$$D$$-glucose are

Mg is present in

Which one is responsible for production of energy in bio-reaction?

CF2 $$=$$ CF2 is monomer of

Which compound forms linear polymer due to H-bond?

In cube of any crystal A-atom placed at every corners and B-atom placed at every centre of face. The formula of compound

Cation and anion combines in a crystal to form following type of compound

From the colligative properties of solution, which one is the best method for the determination of molecular weight of p

Equivalent conductances of Ba2+ and Cl$$-$$ ions are 127 and 76 ohm$$-$$1 cm$$-$$1 eq$$-$$1 respectively. Equivalent con

For the disproportionation of copper 2Cu+  $$ \to $$ Cu2+ + Cu, Eo is (Given Eo for Cu2+/Cu is 0.34 V and E

How enzymes increases the rate of reactions

For the reaction H+ + BrO$$_3^ - $$ + 3Br$$-$$ $$ \to $$ 5Br2 + H2O which of the following relation correctly represents

Which one of the following method is commonly used method for destruction of colloid?

Which compound is electron deficient?

Which compound has planar structure?

Which ion is colourless?

Which of the following shows maximum number of oxidation states?

A 300 grams radioactive sample at initial half life is 3 hours. After 18 hours remaining quantity

Shape of Fe(CO)5 is

Which complex compound will give four isomers?

Which pair do not have equal dimensions ?

Motion of a particle is given by equation s = (3t3 + 7t2 + 14t + 8) m. The value of acceleration of the particle at t =

The width of river is 1 km. The velocity of boat is 5 km/hr. The boat covered the width of river in shortest time 15 min

Two projectiles of same mass and with same velocity are thrown at an angle 60o and 30o with the horizontal, then which w

A man is slipping on a frictionless inclined plane and a bag falls down from the same height. Then the velocity of both

A body of mass 3 kg hits a wall at an angle of 60o and returns at the same angle. The impact time was 0.2 sec. The force

Two masses as shown in the figure are suspended from a massless pulley. The acceleration of the system when masses are l

If $$\overrightarrow F = \left( {60\widehat i + 15\widehat j - 3\widehat k} \right)$$ N and $$\overrightarrow v = \lef

A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 40

For the adjoining diagram, the correct relation between I1, I2, and I3 is, (I-moment of inertia)

For a hollow cylinder and a solid cylinder rolling without slipping on an inclined plane, then which of these reaches ea

As shown in the figure at point O a mass is performing vertical circular motion. The average velocity of the particle is

For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocit

Gravitational force is required for

A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force

A black body has maximum wavelength $$\lambda $$m at 2000 K. Its corresponding wavelength at 3000 K will be

To find out degree of freedom, the expansion is

The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62oC, then this ratio becomes twice, ther

Two masses $$M$$A and $$M$$B are hung from two strings of length $$l$$A and $$l$$B respectively. They are executing SHM

The bob of simple pendulum having length $$l$$, is displaced from mean position to an angular position q with respect to

The equations of two waves acting in perpendicular directions are given as x = $$a$$cos($$\omega $$t +$$\delta $$) and

Two stationary sources each emitting waves of wavelength $$\lambda $$, an observer moves from one source to another with

A string is cut into three parts, having fundamental frequencies n1, n2, n3 respectively. Then original fundamental fre

Electric field at centre O of semicircle of radius $$a$$ having linear charge density $$\lambda $$ given as

A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is

A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capa

The net resistance of the circuit between A and B is

A car battery of emf 12 V and internal resistance $$5 \times {10^{ - 2}}$$ $$\Omega $$., receives a current of 60 amp, f

Two bulbs of (40 W, 200 V), and (100 W, 200 V). Then correct relation for their resistances

The potentiometer is best for measuring voltage, as

The magnetic field at centre, P will be

The frequency order for $$\gamma $$-rays (a), X-rays (b), UV rays (c) is

A bubble in glass slab ($$\mu $$ = 1.5) when viewed from one side appears at 5 cm and 2 cm from other side, then thickne

Rainbow is formed due to

For a plano convex lens ($$\mu $$ = 1.5) has radius of curvature 10 cm. It is silvered on its plane surface. Find focal

A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be

By photoelectric effect, Einstein proved

Who evaluated the mass of electron infirectly with help of charge

For the given reaction, the particle X is $$_6{C^{11}} \to {}_5{B^{11}} + {\beta ^ + } + X$$

Nuclear fission is best explained by

When an electron does transition from n = 4 to n = 2, then emitted line spectrum will be

The relation between $$\lambda $$ and T1/2 as (T1/2 $$ \to $$ half life)

The life span of atomic hydrogen is

Maximum frequency of emission is obtained for the transition

The cations and anions are arranged in alternate form in

From the following diode circuit, which diode is in forward biased condition

The correct relation for $$\alpha $$, $$\beta $$ for a transistor