In which stage of cell cycle, DNA replication occurs?

If the apical bud has been removed then we observe

By which action a seed coat becomes permeable to water

Which is the first CO₂ acceptor enzyme in C₄ plants?

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

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

The first step for initiation of photosynthesis will be

Which hormone is responsible for fruit ripening?

Spindle fibre unite with which structure of chromosomes?

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

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

Which statement is true for WBC?

Sternum is connected to ribs by

Concentration of urine depends upon which organ?

Conversion of ammonia to urea is done by

What is the name of joint between ribs and sternum?

Bone related with skull is

MSH is secreted by

Which of the following characters is absent in all chordates?

Black rust of wheat is caused by

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

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

In ferns, meiosio takes place at the time of

What is true for mammalia?

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

Cleavage in mammals is

Similarly in Ascaris lumbricoides and Anopheles stephensi is

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

Which gland secretes odorous secretion in mammals?

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

Enzymes are not found in

Which of the following have carbohydrate as prosthetic group?

Geocarpic fruits is

ATP is

Pneumatophores are found in

Role of enzyme in reactions is to/as

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

Which is the reason for highest biomass in aquatic ecosystem ?

Who is directly related to man ?

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

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

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

Which is showing accurate pairing ?

Saline solution is given to patients of Cholera because

The bacteria generally used for genetic engineering is :

Plasmid has been used as vector because :

Viable material of endangered species can be preserved by :

Which of the following is initiation codon ?

Indri-indri lemur is found in :

What happens in plants during vascularisation ?

Characteristic of simple epithelium is that they

Lysosome contains :

Proteoglycan in cartilages which is part of polysaccharide is

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

Function of telomeres in nucleus is

Primary function of enteronephric nephridia of Pheretima :

Which pair is correct ?

Which cell organelle is concerned with glycosylation of protein ?

According to mendelism which character is showing dominance ?

Melatonin is secreted by

Depolarization of axolema during nerve conduction takes place because of

Endosperm is formed during the double fertilization by

Eight nucleated embryo sac is

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 :

In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klienfelter's syndrome in male. It proves :

Erythroblastosis foetalis is caused when :

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 21^st chromosome is called :

Which is not a vestigial organ in man ?

Character which is closely related to human evolution

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

Similarity in DNA and RNA :

Anticodon occurs in :

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

Which evidence of evolution related to Darwin's finches ?

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

Length of one loop of B- DNA :

Homo sapiens have evolved in

Shape of Fe(CO)₅ is

Which complex compound will give four isomers?

Which ion is colourless?

Isoelectronic species are

then A is

First product of the reaction between RCHO and NH₂NH₂ is

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

Reduction by LiAlH₄ of hydrolysed product of an ester gives

Polarisation in acrolein can be described as

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

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

Mg is present in

Which is maximum stable?

How enzymes increases the rate of reactions

For the disproportionation of copper
2Cu⁺  $$ \to $$ Cu²⁺ + Cu, E^o is
(Given E^o for Cu²⁺/Cu is 0.34 V and
E^o for Cu²⁺/Cu⁺ is 0.15 V.)

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

Equivalent conductances of Ba²⁺ and Cl^$$-$$ ions are 127 and 76 ohm^$$-$$1 cm^$$-$$1 eq^$$-$$1 respectively. Equivalent conductance of BaCl₂ at infinite dilution is

From the colligative properties of solution, which one is the best method for the determination of molecular weight of proteins and polymers?

Which compound has planar structure?

Which compound is electron deficient?

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

Cell reaction is spontaneous when

For given energy, E = 3.03 $$ \times $$ 10^$$-$$19 Joules corresponding wavelength is (h = 6.626 $$ \times $$ 10^$$-$$34 J sec, c = 3 $$ \times $$ 10⁸ m/sec)

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

In quantitative analysis of second group in laboratory, H₂S gas is passed in acidic medium for precipitation. When Cu²⁺ react with KCN, then for product, true statement is

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

Right order of dissociation energy N₂ and N₂⁺ is

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

Which statement is wrong ?

Which species does not exhibit paramagnetism?

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

For the reaction,
C₂H₅OH_(l) + 3O_2(g) $$ \to $$ 2CO_2(g) + 3H₂O_(l)
which one is true

2Zn + O₂ $$ \to $$ 2ZnO;  $$\Delta $$G^o = $$-$$ 616 J
2Zn + S₂ $$ \to $$ 2ZnS;  $$\Delta $$G^o = $$-$$ 293 J
S₂ + 2O₂ $$ \to $$ 2SO₂;   $$\Delta $$G^o = $$-$$408 J
$$\Delta $$G^o for the following reaction
2ZnS + 3O₂ $$ \to $$  2ZnO + 2SO₂ is

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

Which statement is wrong about pH and H⁺?

Conjugate acid of NH₂^$$-$$ is

Equilibrium constant K_p for following reaction
MgCO_3(s) $$\rightleftharpoons$$ MgO_(s) + CO_2(g)

2-Butene shows geometrical isomerism due to

Which reagent converts propene to 1-propanol ?

Dihedral angle in staggered form of ethane is

Increasing order of electrophilic substitution for following compounds

In Friedel-Crafts reaction , toluene can be prepared by

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

A car battery of emf 12 V and internal resistance $$5 \times {10^{ - 2}}$$ $$\Omega $$., receives a current of 60 amp, from external source, then terminal potential difference of battery is

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

The net resistance of the circuit between A and B is

The potentiometer is best for measuring voltage, as

A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capacity is connected in parallel to the first capacitor. Then energy stored in each capacitor is

A string is cut into three parts, having fundamental frequencies n₁, n₂, n₃ respectively. Then original fundamental frequency n related by the expression as

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

Rainbow is formed due to

By photoelectric effect, Einstein proved

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

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

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

Who evaluated the mass of electron infirectly with help of charge

Nuclear fission is best explained by

Maximum frequency of emission is obtained for the transition

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

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

The cations and anions are arranged in alternate form in

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

Motion of a particle is given by equation s = (3t³ + 7t² + 14t + 8) m. The value of acceleration of the particle at t = 1 sec is

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

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. Then the velocity of river stream is

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

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

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

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 400 g comes down with a velocity 25 m/s. The velocity of other part is (Take g = 10 ms^$$-$$2)

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 earlier

As shown in the figure at point O a mass is performing vertical circular motion. The average velocity of the particle is increased, then at which point will the string break

If $$\overrightarrow F = \left( {60\widehat i + 15\widehat j - 3\widehat k} \right)$$ N and $$\overrightarrow v = \left( {2\widehat i - 4\widehat j + 5\widehat k} \right)$$ m/s, then instantaneous power is

For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be

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

Gravitational force is required for

The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62^oC, then this ratio becomes twice, therefore the initial temperature of the sink and source are respectively

The bob of simple pendulum having length $$l$$, is displaced from mean position to an angular position q with respect to vertical. If it is released, then velocity of bob at equilibrium position

To find out degree of freedom, the expansion is

Two masses $$M$$_A and $$M$$_B are hung from two strings of length $$l$$_A and $$l$$_B respectively. They are executing SHM with frequency relation $$f$$_A = 2$$f$$_B, then relation

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

The magnetic field at centre, P will be

The equations of two waves acting in perpendicular directions are given as
x = $$a$$cos($$\omega $$t +$$\delta $$) and y = $$a$$cos($$\omega $$t + $$\alpha $$), where $$\delta $$ = $$\alpha $$ + $${\pi \over 2}$$, the resultant wave represents

Which pair do not have equal dimensions ?