What will happen if ligaments are torn?

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

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?

Seed dormancy is due to the

Dwarfness can be controlled by treating the plant with

Impulse of heart beat originates from

Which of the following statements is true for lymph?

Which of the following absorb light energy for photosynthesis?

Which cartilage is present at the end of long bones?

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

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

Acromegaly is caused by

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

Adrenaline directly affects on

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?

Which statement is correct for bacterial transduction?

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

In five kingdom system, the main basis of classification is

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

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

In bacteria, plasmid is

Which fungal disease spreads by seed and flowers?

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 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

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

A gene said to be dominant if : -

A diseased man marries a normal woman. They get three daughter and five sons. All the daughter were diseased and sons we

Which of the following is a correct match -

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

Transformation experiment was first performed on which bacteria : -

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

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

Exon part of m-RNAs have code for : -

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

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

Change in sequence of nucleotide in DNA is called as -

Cause of mimicry is -

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

Which of the following is important for speciation ?

Genetic drift oparates in : -

Which of the following are homologous organs ?

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

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

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

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 molecu

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

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

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?

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 $$x$$

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 o

Which has highest pH?

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

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

Heat of combustion $$\Delta $$Ho for C(s), H2(g) and CH4(g) are $$-$$ 94, $$-$$ 68 and $$-$$213 kcal/mol, then $$\Delta

Which reaction is not feasible?

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

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

Reaction BaO2(g) $$\rightleftharpoons$$ BaO(s) + O2(g); $$\Delta $$H = +ve. In equilibrium condition, pressure of O2

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

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

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

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similar

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 pl

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situ

For the given incident ray as shown in figure, the condition of total internal refraction of this ray the required refra

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

Specific resistance of a conductor increases with

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

The value of Planck's constant is

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.

In a p-n junction

The given truth table is for which logic gate             &

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

Consider two rods of same length and different specific heats (S1, S2), conductivities (K1, K2) and area of cross-sectio

An object of mass 3 kg is at rest. Now a force of $$\overrightarrow F $$ = 6t2 $$\widehat i$$ + 4t $$\widehat j$$ is app

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

A block of mass 10 kg placed on rough horizontal surface having coefficient of friction m = 0.5, if a horizontal force

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 th

A point P consider at contact point of a wheel on ground which rolls on ground without slipping then value of displaceme

A solid sphere of radius R is placed on smooth horizontal surface. A horizontal force F is applied at height h from the

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 geometrica

Unit of Stefan's constant is

For a black body at temperature 727oC, its radiating power is 60 watt and temperature of surrounding is 227oC. If temper

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 i

Displacement between maximum potential energy position and maximum kinetic energy position for a particle executing simp

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

A mass is suspended separately by two different springs in (successive order then time periods is t1 and t2 respectively

A wave travelling in positive X-direction with a $$=$$ 0.2 ms$$-$$2, velocity = 360 ms$$-$$1 and $$\lambda $$ $$=$$ 60 m

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

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 re

A particle A is dropped from a height and another particle B is projected in horizontal direction with speed of 5/sec fr