Which cartilage is present at the end of long bones?

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

Seed dormancy is due to the

Which pigment absorbs the red and far-red light?

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

Dwarfness can be controlled by treating the plant with

Impulse of heart beat originates from

Which of the following statements is true for lymph?

What will happen if ligaments are torn?

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

Acromegaly is caused by

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

Adrenaline directly affects on

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

What is the direction of micropyle in anatropous ovule?

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

In angiosperms pollen tube liberate their male gametes into the

In a population, unrestricted reproductive capacity is called as -

What is true for cleavage : -

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

In bacteria, plasmid is

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

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

Which fungal disease spreads by seed and flowers?

Which statement is correct for bacterial transduction?

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

In five kingdom system, the main basis of classification is

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

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 dimorphic nucleus is found?

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

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

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

Which of the following is a reducing sugar?

Edible part in mango is

Lipids are insoluble in water because lipid molecules are

Geocarpic fruit is

Which of the following absorb light energy for photosynthesis?

Best material for the study of mitosis in laboratory is

Mitotic spindle is mainly composed of which protein?

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

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

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

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

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

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

Which bacteria is utilized in Gober gas plant ?

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

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

What is true for individuals of same species ?

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

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

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

Exon part of m-RNAs have code for : -

Vessels are found in : -

Which of the following statement is true ?

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

Four radial vascular bundle are found in : -

Ribosomes are produced in :

Collagen is : -

In fluid mosaic model of plasma membrane

Melanin protect from :-

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

Which of the following is the example of pleiotropy ?

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 : -

Which of the following is a correct match -

A gene said to be dominant if : -

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

Genetic drift oparates in : -

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

Change in sequence of nucleotide in DNA is called as -

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

Which of the following are homologous organs ?

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

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

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

Which of the following is important for speciation ?

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

In which era reptiles were dominant ?

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

Transformation experiment was first performed on which bacteria : -

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

Cause of mimicry is -

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

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

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

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?

In the following reaction product $$P$$ is

Product 'P' in the above reaction is

are

Which is not true statement?

Enzymes are made up of

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

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

2A $$ \to $$ B + C

It would be a zero order reaction when

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.

Which of the following order is wrong?

Which of the following statement is true?

General electronic configuration of lanthanides is

Which of the following shows maximum number of oxidation states?

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

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

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

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

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

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

Which of the following is isoelectronic?

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

Unit of entropy is

Which reaction is not feasible?

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)

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

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

Which has highest pH?

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

IUPAC name of the following is

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

Geometrical isomers differ in

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

Reactivity order of halides for dehydrologenation 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

Z in the above reaction sequence is

When CH₃CH₂CHCl₂ is treated with NaNH₂, the product formed is

In the above reaction product P 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

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

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

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)

Specific resistance of a conductor increases with

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

What is the cause of Green house effect ?

The velocity of electromagnetic wave is parallel to

For a series LCR circuit the power loss at resonance is

The value of Planck's constant is

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

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

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 $$\mathop A\limits^ \circ $$

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

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

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

Which of the following are suitable for the fusion process ?

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

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

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 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 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 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

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

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

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

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 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

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

The Wien's displacement law express relation between

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

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

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

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 ?

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

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

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

To convert a galvanometer into a voltmeter one should connect a

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