What will happen if ligaments are torn?

Which of the following absorb light energy for photosynthesis?

Which pigment absorbs the red and far-red light?

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called

How many ATP molecules are produced by aerobic oxidation of one molecule of glucose?

Dwarfness can be controlled by treating the plant with

Seed dormancy is due to the

Impulse of heart beat originates from

Which of the following statements is true for lymph?

In photosynthersis energy from light reaction to dark reaction is transferred in the form of

Which cartilage is present at the end of long bones?

Which of the following statement is correct for node of Ranvier of nerve?

When both ovaries are removed from rat then which hormone is decreased in blood?

Adrenaline directly affects on

Mainly which type of hormones control the menstrual cycle in human beings?

Acromegaly is caused by

In angiosperms pollen tube liberate their male gametes into the

In angiosperm all the four microspores of tetrad are covered by a layer which is formed by

What is the direction of micropyle in anatropous ovule?

What is true for cleavage : -

In a population, unrestricted reproductive capacity is called as -

In which of the following animals dimorphic nucleus is found?

The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?

Which statement is correct for bacterial transduction?

In five kingdom system, the main basis of classification is

Which of the following secretes toxins during storage conditions of crop plants?

Choose the correct sequence of stages of growth curve for bacteria.

Which fungal disease spreads by seed and flowers?

In bacteria, plasmid is

Some bacteria are able to grow in streptomycin containing medium due to

Which of the following is without exception in angiosperms?

Which of the following plants produces seeds but not flowers?

In which of the following animals nerve cell is present but brain is absent?

Which of the following is the example of pleiotropy ?

In which of the following, notochord is present in embryonic stage?

In protozoa like Amoeba and Paramecium, the organ for osmoregulation is

Geocarpic fruit is

Edible part in mango is

Which of the following is a reducing sugar?

Lipids are insoluble in water because lipid molecules are

Mitotic spindle is mainly composed of which protein?

Best material for the study of mitosis in laboratory is

Wildlife is continuously decreasing. What is the main reason of this ?

Cancerous cells can easily be destroyed by radiations due to : -

If a diploid cell is treated with colchicine then it becomes : -

What is the reason of formation of embryoid from pollen grain in tissue culture medium ?

Which of the following crops have been brought to India from New world ?

Which bacteria is utilized in Gober gas plant ?

During the formation of bread it becomes porous due to release of CO₂ by the action of : -

Manipulation of DNA in genetic engineering became possible due to the discovery of : -

What is true for individuals of same species ?

Which type of association is found in between entomophilous flower and pollinating agent ?

Two different species can not live for long duration in the same niche or habitat. This law is : -

Bamboo plant is growing in a far forest then what will be the trophic level of it ?

In which era reptiles were dominant ?

Axillary bud and terminal bud derived from the activity of : -

Four radial vascular bundle are found in : -

Vessels are found in : -

Which of the following statement is true ?

Melanin protect from :-

Collagen is : -

Ribosomes are produced in :

In fluid mosaic model of plasma membrane

Which of the following reunites the exon segments after RNA splicing ?

There are three genes a, b and c. The percentage of crossing over between a and b is 20%, b and c is 28% and a and c is 8%. What is the sequence of genes on chromosome

On selfing a plant of F₁ generation with genotype “AABbCC”,the genotypic ratio in F₂ generation will be

A diseased man marries a normal woman. They get three daughter and five sons. All the daughter were diseased and sons were normal. The gene of this disease is : -

A gene said to be dominant if : -

Which of the following is a correct match -

In a DNA percentage of thymine is 20% then what is the percentage of guanine : -

Jacob and Monad studied lactose metabolism in E.Coli and proposed operon concept. Operon concept applicable for :

Transformation experiment was first performed on which bacteria : -

In E. Coli, during lactose metabolism repressor binds to : -

Exon part of m-RNAs have code for : -

Which of the following enzymes are used to join bits of DNA ?

Out of 64 codons, 61 codons code for 20 types of amino acid it is called : -

Change in sequence of nucleotide in DNA is called as -

Cause of mimicry is -

Which of the following is important for speciation ?

There is no life on moon due to the absence of -

Which of the following are homologous organs ?

Genetic drift oparates in : -

Sequence of which of the following is used to know the phylogeny ?

In which condition, the gene ratio remains constant for any species population ?

According to fossils which discovered up to present time, origin and evolution of man was started from

In the silver plating of copper, K[Ag(CN)₂] is used instead of AgNO₃. The reason is

Which has maximum molecules?

In hydrogen atom, energy of first excited state is $$-$$ 3.4 eV. Then find out K.E. of same orbit of hydrogen atom

2A $$ \to $$ B + C

It would be a zero order reaction when

In the following reaction product $$P$$ is

are

Product 'P' in the above reaction is

Enzymes are made up of

Which is not true statement?

A solution containing components A and B folloes Raoult's law

A solution contains non volatile solute of molecular mass M₂. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure?

2.5 litre of 1 M NaOH solution is mixed with another 3 litre of 0.5 M NaOH solution. Then find out molarity of resultant solution.

In electrolysis of NaCl when Pt electrode is taken then H₂ is liberated at cathode while with Hg cathode it forms sodium amalgam

Which of the following statement is true?

Which of the following order is wrong?

General electronic configuration of lanthanides is

Which of the following shows maximum number of oxidation states?

Zn gives H₂ gas with H₂SO₄ and HCl but not with HNO₃ because

An atom has electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³ 4s², you will place it in

$${}_{92}^{235}$$U, nucleus absorbs a neutron and distintegrate in $${}_{54}^{139}$$Xe, $${}_{38}^{94}$$Sr and $$x$$ so, what will be product $$x$$?

Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagetic with the spin of electron?

The hypothetical complex chloro diaquatriammine cobalt(III) chloride can be represented as

CuSO₄ when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex

Reaction BaO_2(g) $$\rightleftharpoons$$ BaO_(s) + O_2(g); $$\Delta $$H = +ve. In equilibrium condition, pressure of O₂ depends on

Which of the following has p$$\pi $$ $$-$$ d$$\pi $$ bonding?

In NO₃^$$-$$ ion number of bond pair and lone pair of electrons on nitrogen atom are

Which of the following is isoelectronic?

Unit of entropy is

Which reaction is not feasible?

In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true ?

Heat of combustion $$\Delta $$H^o for C_(s), H_2(g) and CH_4(g) are $$-$$ 94, $$-$$ 68 and $$-$$213 kcal/mol, then $$\Delta $$H^o for C_(s) + 2H_2(g) $$ \to $$ CH_4(g) is

2 mole of ideal gas at 27^oC temperature is expanded reversibly from 2 lit. to 20 lit. Find entropy change. (R = 2 cal/mol K)

Solubility of MX₂ type electrolytes is 0.5 $$ \times $$ 10^$$-$$4 mole/lit., then find out K_sp of electrolytes.

Which has highest pH?

Solution of 0.1 N NH₄OH and 0.1 N NH₄Cl has pH 9.25. Then find out pK_b of NH₄OH

The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then empirical formula is

Geometrical isomers differ in

IUPAC name of the following is

CH₂ $$=$$ CH $$-$$ CH₂ $$-$$ CH₂ $$-$$ C $$ \equiv $$ CH

In the above reaction product P is

When CH₃CH₂CHCl₂ is treated with NaNH₂, the product formed is

Reactivity order of halides for dehydrologenation is

Z in the above reaction sequence is

n-propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent

When phenol is treated with CHCl₃ and NaOH, the product formed is

A capacitor of capacity C₁ charged upto V volt and then connected to an uncharged capacitor of capacity C₂. The final potential difference across each will be

The value of Planck's constant is

To convert a galvanometer into a voltmeter one should connect a

A charge q moves in a region where electric field and magnetic field both exist, then force on it is

The magnetic field of given length of wire for single turn coil at its centre is B then its value for two turns coil for the same wire is

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is T₁. Now the polarity of one of the magnet is reversed then time period of oscillation is T₂, then

For a series LCR circuit the power loss at resonance is

The velocity of electromagnetic wave is parallel to

What is the cause of Green house effect ?

A bulb is located on a wall. Its image is to be obtained on a parallel wall with the help of convex lens. The lens is placed at a distance d ahead of second wall, then required focal length will be

For the given incident ray as shown in figure, the condition of total internal refraction of this ray the required refractive index of prism will be

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye. The wavelength of light is 5000 $$\mathop A\limits^ \circ $$

If particles are moving with same velocity, then which has maximum de Broglie wavelength?

Specific resistance of a conductor increases with

When ultraviolet rays incident on metal plate then photoelectric effect does not occur, it occurs by incidence of

Which of the following is not the property of cathode rays ?

Which of the following are suitable for the fusion process ?

A deutron is bombarded on ₈O¹⁶ nucleus then $$\alpha $$-particle is emitted. The product nucleus is

Number of atom per unit cell in B.C.C.

The given truth table is for which logic gate

              $$\matrix{ A & B & Y \cr 1 & 1 & 0 \cr 0 & 1 & 1 \cr 1 & 0 & 1 \cr 0 & 0 & 1 \cr } $$

In a p-n junction

For the given circuit of p-n junction diode which is correct

For a black body at temperature 727^oC, its radiating power is 60 watt and temperature of surrounding is 227^oC. If temperature of black body is changed to 1227^oC then its radiating power will be

A particle A is dropped from a height and another particle B is projected in horizontal direction with speed of 5/sec from the same height then correct statement is

A lift of mass 1000 kg which is moving with acceleration of 1 m/s² in upward direction, then the tension developed in string which is connected to lift is

A block of mass 10 kg placed on rough horizontal surface having coefficient of friction m = 0.5, if a horizontal force of 100 N acting on it then acceleration of the block will be

If kinetic energy of a body is increased by 300% then percentage change in momentum will be :

A rod of length is 3 m and its mass acting per unit length is directly proportional to distance x from one of its end then its centre of gravity from that end will be at :

A point P consider at contact point of a wheel on ground which rolls on ground without slipping then value of displacement of point P when wheel completes half of rotation (if radius of wheel is 1 m)

A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force F is applied at height h from the lowest point. For the maximum acceleration of centre of mass, which is correct ?

A disc is rotating with angular speed $$\omega $$. If a child sits on it, what is conserved

A circular disc is to be made by using iron and aluminium so that it acquired maximum moment of inertia about geometrical axis. It is possible with

Unit of Stefan's constant is

Consider two rods of same length and different specific heats (S₁, S₂), conductivities (K₁, K₂) and area of cross-sections (A₁, A₂) and both having temperatures T₁ and T₂ at their ends. If rate of loss of heat due to conduction is equal, then

Which of the following is best close to an ideal black body?

The Wien's displacement law express relation between

The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of sink will be

Displacement between maximum potential energy position and maximum kinetic energy position for a particle executing simple harmonic motion is

When an oscillator completes 100 oscillations its amplitude reduced to $${1 \over 3}$$ of initial value. What will be its amplitude, when it complettes 200 oscillations ?

A mass is suspended separately by two different springs in (successive order then time periods is t₁ and t₂ respectively, If it is connected by both spring as shown in figure then time period is t₀ , the correct relation is

A wave travelling in positive X-direction with a $$=$$ 0.2 ms^$$-$$2, velocity = 360 ms^$$-$$1 and $$\lambda $$ $$=$$ 60 m, then correct expression for the wave is

Identical charges ($$-$$q) are placed at each corners of cube of side b then electrostatic potential energy of charge (+q) which is placed at centre of cube will be

Some charge is being given to a conductor. Then its potential is

For a cell terminal potential difference is 2.2V when circuit is open and reduce to 1.8 V when cell is connected to a resistance of R = 5 $$\Omega $$. Determine internal resistance of cell (r)

An object of mass 3 kg is at rest. Now a force of $$\overrightarrow F $$ = 6t² $$\widehat i$$ + 4t $$\widehat j$$ is applied on the object then velocity of object at t = 3 sec. is