______ is a life process that is not enential for an individuals survival but for survival of thespecies

Antisense technology is :-

The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in

Which of the following enzyme is called regulatory enzyme of glycolysis ?

Select the group of plants that possess stilt roots:-

The first step in Dark Reaction of photosynthesis is :-

In _______ placentation, a monocarpellary ovary bears a many ovules along the junction of two
fused margins :-

Uniport, Symport and Antiport are the types of :-

During secondary growth in a dicot root, cork cambium is formed by the activity of :-

Find out the correct relationship :-

In which the following important intrinsic mechanisms provide auto regulation of glomerular filtration :-

If biotic potential of a species is high than :

Identify the correct and wrong statements :-
(a) Human skeleton has 206 bones
(b) There are 12 pairs of ribs in human
(c) Sternum is present on the dorsal side of the body.
(d) All mammals (except of few) have 8 cervical vertebrae.
(e) Ribs are bicephalic

How many statements are correct :
(a) Predators also help in maintaining species diversity in a community
(b) Decomposition is largely an oxygen requiring process
(c) Number of trophic levels in GFC is never restricted
(d) Some of organisms of DFC are prey to GFC animals

During forensic investigation, a pelvic girdle was found, is of female. How does they concluded that it was of female
not male ?

Select the mismatch from the following :

36. If the embryosac cell of an angiosperm has 12 chromosome then in the microspore mother cell will be :-

When pollen grain of a flower pollinate the stigma of another flower of the same plant, it is called:-

Term “Taxonomy” was given by :-

Which of the following statements are correct for capitulum inflorescence?
(i) Most advanced type of inflorescence (ii) Florets are arranged in centrifugal order
(iii) Disc florets are unisexual female flower (iv) Inflorescnes is covered by spathe

Identify the given diagram and select the correct option :

Select correct statement with respect to ETS in mitochondria :-
(a) cyt c is attached to the outer surface of inner membrane
(b) Has only one mobile carrier
(c) Complex III includes cyt b and cyt c1
(d) Complex IV has two copper centers
Options :-

Which of these is a condition that makes flower invariable autogamous ?

During joint diastole :-

The abdomen in cockroach have _____number of segments

. The figure given below shows a small part of the human lung where the exchange of gases takes place. In which one of the
options are given below, the one part, A, B, C or D is correctly identified along with its function option:

The use of bioresources by multinational companies and other organization without proper authorisation from
countries and people concerned without compensatory payment is known as :-

In “Rivet popper hypothesis” Rivet indicates :-

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

Assertion :- The frictional force acts only when the bodies are in contact.
Reason :- When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is always in
forward direction.

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

Assertion :- On going away from a point charge or a small electric dipole, electric field decreases at the same rate in
both cases.
Reason :- Electric field is inversely proportional to the square of distance from the charge or an electric dipole.

A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless
spring of force constant k=50N/m. The maximum compression of the spring would be : –

A charge particle moves along the line AB, which lies in the same plane of a circular loop of conducting wire as
shown in the fig. Then :-

A semicircular wire of radius R, carrying current I is placed in a magnetic field as shown in the figure. On left side of
XX’, magnetic field strength is B0
and on rigth side of XX’, magnetic field strength is 2B0
. The magnetic force
experienced by the wire would be : –

In the circuit shown below, the current that flows from a to b when the switch S is closed, is :-

Find potential at point ‘x’ in given circuit :-

The figure shown a logic circuit two inputs A and B and the output C. The voltage wave forms across A, B and C are as given. The logic circuit gate is:

A piston of cross-section area 100 cm^2 is used in a hydraulic press to exert a force of 10^7 dynes on the water. The cross-sectional area of the other piston which supports an object having a mass 2000 Kg in cm² is:

What is the equivalent resistance between A and B?

Air is filled at 60ºC in a vessel of an open mouth. The vessel is heated to a temperature T so that 1/4^th part of air escapes. The value of T is:

In electromagnetic waves, the angle between the direction of wave propagation and the vibration plane is

Calculate the volume of NH₃(g) produced at STP when 3 × 1023 molecules of N₂(g) are mixed with 6g of H2(g) in the reaction
N₂(g) + H₂(g)

NH₃(g)

The complex ion [Pt (NO₂) (Py) (NH₃) (NH₂OH)]⁺ will give:

At 627°C and 1 atm, SO₃ is partially dissociated into SO₂ and O₂ by:

The density of the equilibrium mixture is 0.925 g/L. What is the degree of dissociation?

Arrange the following electrolytes in increasing order of coagulation power of As₂S₃ sol :

A1                 A2                  A3

K₂SO₄          CaCl₂            AlCl₃

NH₃ + Cl₂ (excess) —> X + Y , X & Y are?

The reaction A(g)

B(g) + 2C(g) is a first-order reaction with rate constant 2.772 × 10–3s–1. Starting with 0.1 moles of A in 2-litre vessel, find the concentration of A after 250 sec when the reaction is allowed to take place at constant pressure at 300 K :

How many

bonds are present in (CN)₂?

In the combustion of CH₄ number of e^– involved is:

In the molecule of the type AX₂L_n (where L represents lone pairs and n is its number) there exist a bond between element A and X. The

XAX bond angle:

Which of the following ART is not used in IVF program ?

Lichen and mosses do not grow in :-

The excess of nutrients which are not used immediately are converted into __________ and
stored in __________ Tissue :-

Which statement is not correct ?

Which of the following represents Phylum / Division ?

Which of the following bone is not a part of appendicular skeleton?

The main function of pedicellarae is :-

Regulatory proteins of skeletal muscle are :-

Eubacteria cannot do :

A nerve impulse is transmitted from one neuron to another neuron through junction called as

ATP is injected in cyanide poisoning because it is :-

Post pollination development of pollen grain is known as :-

The diagram represent the calvin cycle :-

at which stage CO2 incorporated ?

Polar nuclei are situated in the central cell :-

Which of the following is formed as a result of triple fusion ?

If pyruvic acid accumulated in cell then which regulation required

Typical cervical vertebra has :-

The phenotype is affected when :-

Cerebral hemispheres are connected by a tract of nerve fibres called as :-

A cross is being given here :-

If B stands for pink flower then

(a) What is the name of plant ? (b) What % of F2 progeny will produce A ?

Most abundant element in human body is :-

Synaptonemal complex has a role in :-

PGR of which of the following chemical nature, is helpful in wine production ?

The Hardy-Weinberg principle can not operate if :

Which regulates reabsorption of salts from Glomerular filtrate

The chloride shift is movement of C

Match column I and column II and choose correct option from followings :-

Green muflur scheme is related to control of :-

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

Assertion :– Cars & aeroplanes are streamlined
Reason :– Bernoulli’s theorem hold for incompressible, non viscous fluids

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

Assertion :- According to the law of conservation of mechanical energy change in potential energy is equal and
opposite to the change in kinetic energy.
Reason :- Mechanical energy is not a conserved quantity

Phenelzine and Iproniazid are:

AB₄^– + C⁺² ==> C⁺³ + A⁺². If the O.N. of B is –2. Choose the true statement for the above change :

How many products can be a common product when XeF₂ react with H₂O and XeF₄ react with H₂O:

Element with atomic number 92, if emits one

and one

particle then daughter nuclei configuration will be:

Which of the following is/are correct order :

(a) Thermal stability = BeSO₄ < MgSO₄< CaSO₄ < SrSO₄

(b) Melting point = NaCl > KCl > RbCl > CsCl > LiCl

(c) Solubility = LiOH < NaOH

(d) Lattice energy = KF > KCl > KBr > KI

Two liquids A and B have vapour pressure in the ratio

at a certain temperature. Assume A and B form
an ideal solution and the ratio of mole fraction of A to B in the vapour phase is 4 : 3. Then the mole fraction of liquid
B in the solution at the same temperature is :

A Solution has [OH^–] >10^–7 M at temperature 90°C. Then the possible nature of the solution is:

Fe²⁺ ion can be distinguished by Fe³⁺ ion by

Solubility product of Mg(OH)₂ is 1 × 10^–11. At what pH ppt of Mg(OH)₂ will begin from 0.1 M Mg²⁺ solution.

An organic compound of C,H & O, contains hydrogen, 1/6 of carbon and 1/8 of oxygen by mass. The molar mass of the compound is 120 gmol^–1. The molecular formula of the compound is :

A circuit is connected as shown in figure with the switch S is open when switch is closed the total amount of charge
that flows from y to x is :-

A body of mass 0.4 Kg starting at origin at t = 0 with a speed of 10 m/s in the positive x-axis direction is subjected to
a constant F= 8N towards negative x-axis. The position of the body after 25 second is

Which electric field is responsible for the proton’s trajectory as shown below ?

The diagram shows a capacitor C and a resistor R connected in series to an AC source, V1 and V2 are voltmeters and A is an ammeter. Consider now the following statements :
(I) Readings in A and V2 are always in phase
(II) Reading in V1 is ahead with reading in V2
(III) Readings in A and V1 are always in phase
Which of these statements are is correct :

When a body moves with a constant speed along a circle : –

Two wires of resistance R1 and R2 at 0° C have temperature coefficients of resistance ∝1 and ∝2 respectively. These are joined in series. The effective temperature coefficient of resistance is : –

Assume a bulb of efficiency 2.5% as a point source. The peak values of the magnetic field produced by the radiation
coming from a 100 W bulb at a distance of 3 m is respectively:

A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a weightless spring of
force constant k = 50 N/m. The maximum compression of the spring would be

If the maximum circumference of a sphere is 2 m, then its capacitance in water would be (approximately):

(Dielectric constant of water = 81)

A second harmonic has to be generated in a string of length L stretched between two rigid supports. The point where the string has to be plucked and touched are :

What is not incorrect for cockroach ?

In multicellular organisms the mitosis occurs due to cell growth, which causes the disturbance in
_____ ratio :-

Lysine and arginine amino acids are :

Where did australophithecinens live :-

Resistance to jassids in cotton and cereal leaf beetle in wheat are assosiated with :

Potato and sweet potato are example of

Principle of plant tissue culture ?

Which one of the following option is least aplicable for origin of new species :-

Match the column I with column-II :-
Column-I Column-II
(A) Rapeseed mustard (i) Pusa gaurav
(B) Okra (ii) Jassids
(C) Flat bean (iii) Shoot borer
(D) Cow pea (iv) Bacterial blight

Cancer of epithelial cells is called ?

Heterosporous pteridophyte are :-

In his experiment S.L Miller observed the formation of :-

Read the following statement. Find out how many statements are correct :-
(a) The leaves in Gymnosperms are well adapted to with stand extremes of temperature, humidity and wind.
(b) Gymnosperms are homosporous
(c) Unlike Bryophyta and pteridophyta in gymnosperms the male and female gametophyte do not have an independent free-living existence.
(d) In cycas male cone and megasporophyll are born on different trees.

Who discovered viroids :-

Fish die in polluted water by sewage due to :

Match the column-I and column-II and choose the correct option :-

Read statement (a-d) regarding population interaction :
(a) Human liver fluke has two intermediate host for survival
(b) Cuscuta is a parasitic plant lost its chlorophyll during evolution
(c) Female mosquito is considered as parasite
(d) Morphological and anatomical features are highly complex of endoparasites
Which of following statement is incorrect :

Recognise the figure and find out the correct matching:-

Slash and burn agriculture commonly called as jhum cultivation in North-Eastern state of India related to

If in a cell the amount of DNA is 2C in G₂ phase then what will be the ratio of amount of DNA in metaphase : G₁ phase : Anaphase ?

Consider the following four statements (a-d) and select the option which includes all the correct ones only :
(a) Vascular cambium of dicot roots is partly primary and partly secondary in origin
(b) Heart wood becomes non-conducting elements due to formation of tyloses.
(c) Vessels of spring wood have wide lumen
(d) Cork becomes impermeable in nature due to deposition of lignin

Factors help in the formation of new species are :

Match the Column-I and Column-II.

The main region of alimentary canal in which digested food is absorbed

Match column-I with column-II :-

In ophrys (orchid) and bumble bee relationship, what adaptation is shown by the plant ?

Which of the following is not a ideal property of vector DNA ?

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False

Assertion :– If earth shrinks to half its present size, length of the day would become 6 hours.
Reason :– As the size of the earth changes, its moment of inertia changes.

These questions consist of two statements each, printed as Assertion and Reason.While answering these Questions you are required to choose any one of the following four responses.
a. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
b. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
c. If Assertion is True but the Reason is False.
d. If both Assertion & Reason are False.

Assertion :- The graph of potential energy and kinetic energy of a particle in SHM with respect to position is a
parabola.
Reason :- The potential energy and kinetic energy of a particle in SHM, don’t vary linearly with position

The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in

Which of the following is minimum basic?

Incorrect match :

Which of the following is wrong :-

The correct bond order for CO and CO⁺ are respectively :

(where p1 and p2 are pressures) the cell reaction will be spontaneous if:-

The free energy for a reaction having

H=31400 cal,

S=32 cal K^-1 mol^-1 at 1000°C is:

250 ml of x M solution and 500 ml of yM solution of a solute A are mixed and diluted to 2 litre to produce a final concentration of 1.6 M. If x : y = 5 : 4, calculate x and y:

In the circuit shown in figure when switch is shifted from position 1 to position 2 then heat generated in circuit is :-

A particle of mass 10 g moves along a circle of radius 6.4 cm with a constant tangential acceleration. What is the
magnitude of this acceleration if the kinetic energy of the particle becomes equal to 8 × 10–4 J by the end of the
second revolution after the beginning of the motion?

The given graph shows variation with time in the source voltage and steady state current drawn by a series RLC
circuit :-
Which of the following statements is/are correct?
(a) Current lags the voltage (b) Resistance in the circuit is 250 3 
(c) Reactance in the circuit is 250  (d) Average power dissipation in the circuit is 20 3 

Radius of a sphere is 1.41. Its volume upto significant digits is :-

The motion of particle of mass ‘m’ is given by y = ut +1/2 gt2. The force acting on the particle is

An electric dipole is placed at the origin O such that its equator is y-axis. At a point P far away from dipole, the
electric field direction is along y-direction. OP makes an angle ∝ with the x-axis such that

The minimum force required to start pushing a body up a rough (frictional coefficient µ) inclined plane is F₁ while the minimum force needed to prevent it from sliding down is F₂. If the inclined plane makes an angle ? with the horizontal such that tanΘ = 2µ, then the ratio F₁/F₂ is:

The M.I. of a thin rod of length  about the perpendicular axis through its center is I. The M.I. of the square structure made by four such rods about a perpendicular axis to the plane and through the center will be :

If π₁/π₂ and are the wavelengths of the first members of the Lyman and Paschen series respectively, then

A bullet of mass 40 g moving with a speed of 90 ms–1 enters a heavy wooden block and is stopped after a distance of 60 cm. The average resistive force exerted by the block on the bullet is:-

The male and female gametophytes do not have an independent free-living existence in :

In multicellular organisms the mitosis occurs due to cell growth, which causes the disturbance in
_____ ratio :-

Read the following statements carefully :-
(A) Hemizygous condition can be achieved in male individuals for autosomal characters.
(B) Hybrid vigour occurs due to heterozygosity in characters.
(C) In pea plants, wrinkled seeds donot have starch grains.
(D) Chromosome 2, 3 and 6 in pea plant do not have genes for any character. How many of the
above statements are wrong?

Where did australophithecinens live :-