In which stage of cell cycle, DNA replication occurs?

By which action a seed coat becomes permeable to water

The first step for initiation of photosynthesis will be

If the apical bud has been removed then we observe

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

Which is the first CO₂ acceptor enzyme in C₄ plants?

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?

Which statement is true for WBC?

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

Sternum is connected to ribs by

Concentration of urine depends upon which organ?

Bone related with skull is

Conversion of ammonia to urea is done by

What is the name of joint between ribs and sternum?

Depolarization of axolema during nerve conduction takes place because of

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

Black rust of wheat is caused by

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

In ferns, meiosio takes place at the time of

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

What is true for mammalia?

Which of the following characters is absent in all chordates?

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

Melatonin is secreted by

Which of the following have carbohydrate as prosthetic group?

Geocarpic fruits is

ATP is

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

Enzymes are not found in

Pneumatophores are found in

Role of enzyme in reactions is to/as

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

Viable material of endangered species can be preserved by :

Length of one loop of B- DNA :

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

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

Saline solution is given to patients of Cholera because

Which is showing accurate pairing ?

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

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 ?

Who is directly related to man ?

Indri-indri lemur is found in :

What happens in plants during vascularisation ?

Primary function of enteronephric nephridia of Pheretima :

Function of telomeres in nucleus is

Characteristic of simple epithelium is that they

Proteoglycan in cartilages which is part of polysaccharide is

Lysosome contains :

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

Which cell organelle is concerned with glycosylation of protein ?

Which pair is correct ?

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

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 :

Erythroblastosis foetalis is caused when :

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

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 :

Which is not a vestigial organ in man ?

Character which is closely related to human evolution

Homo sapiens have evolved in

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

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

Which of the following is initiation codon ?

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

Which evidence of evolution related to Darwin's finches ?

Anticodon occurs in :

Similarity in DNA and RNA :

Shape of Fe(CO)₅ is

Which complex compound will give four isomers?

Which ion is colourless?

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

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)

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

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

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

Mg is present in

2-Butene shows geometrical isomerism due to

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.)

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

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

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

How enzymes increases the rate of reactions

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

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

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

Isoelectronic species are

Right order of dissociation energy N₂ and N₂⁺ is

Which species does not exhibit paramagnetism?

Which statement is wrong ?

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

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

Cell reaction is spontaneous when

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

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

Dihedral angle in staggered form of ethane is

Which reagent converts propene to 1-propanol ?

Increasing order of electrophilic substitution for following compounds

In Friedel-Crafts reaction , toluene can be prepared by

Which is maximum stable?

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

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

The magnetic field at centre, P will be

The potentiometer is best for measuring voltage, as

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, from external source, then terminal potential difference of battery is

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

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

Who evaluated the mass of electron infirectly with help of charge

Rainbow is formed due to

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

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

By photoelectric effect, Einstein proved

Nuclear fission is best explained by

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

Maximum frequency of emission is obtained for the transition

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

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

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

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

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

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

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

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)

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

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

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 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

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 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

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

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

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

Which pair do not have equal dimensions ?