Lecithin, a small molecular weight organic compound found in living tissues, is an example of:

How many molecules of ATP and NADPH are required for every molecule of $$\mathrm{CO}_2$$ fixed in the Calvin cycle?

Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of:

In the given figure, which component has thin outer walls and highly thickened inner walls?

The cofactor of the enzyme carboxypeptidase is:

The capacity to generate a whole plant from any cell of the plant is called:

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Given below are two statements: Statement I : Bt toxins are insect group specific and coded by a gene cry IAc. Statement

Which of the following is an example of actinomorphic flower?

The type of conservation in which the threatened species are taken out from their natural habitat and placed in special

Identify the set of correct statements: A. The flowers of Vallisneria are colourful and produce nectar. B. The flowers o

The lactose present in the growth medium of bacteria is transported to the cell by the action of

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The equation of Verhulst-Pearl logistic growth is $$\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left[\frac{\mathrm{K}-\m

Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin

Identify the part of the seed from the given figure which is destined to form root when the seed germinates.

Given below are two statements: Statement I : Parenchyma is living but collenchyma is dead tissue. Statement II : Gymnos

These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat lo

Which one of the following is not a criterion for classification of fungi?

Identify the type of flowers based on the position of calyx, corolla and androecium with respect to the ovary from the g

List of endangered species was released by

What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism? A. The pi

Which one of the following can be explained on the basis of Mendel's Law of Dominance? A. Out of one pair of factors one

Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:

Formation of interfascicular cambium from fully developed parenchyma cells is an example for

Spindle fibers attach to kinetochores of chromosomes during

Tropical regions show greatest level of species richness because A. Tropical latitudes have remained relatively undistur

Given below are two statements: Statement I : Chromosomes become gradually visible under light microscope during leptote

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Bulliform cells are responsible for

A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expec

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and

In a plant, black seed color $$(\mathrm{BB} / \mathrm{Bb})$$ is dominant over white seed color $$(\mathrm{bb})$$. In ord

Which of the following are required for the dark reaction of photosynthesis? A. Light B. Chlorophyll C. $$\mathrm{CO}_2$

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The DNA present in chloroplast is:

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Which of the following statement is correct regarding the process of replication in E.coli?

Identify the correct description about the given figure :

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Read the following statements and choose the set of correct statements: In the members of Phaeophyceae, A. Asexual repro

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is $$100 x\left(\mathrm{kcal} \mathrm{~m}^{

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Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate.

Given below are two statements: Statement I: In $$\mathrm{C}_3$$ plants, some $$\mathrm{O}_2$$ binds to $$\mathrm{RuBisC

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Which of the following are fused in somatic hybridization involving two varieties of plants?

Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increas

Following are the stages of pathway for conduction of an action potential through the heart A. AV bundle B. Purkinje fib

In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on

The flippers of the Penguins and Dolphins are the example of the

Which of the following is not a component of Fallopian tube?

Given below are some stages of human evolution. Arrange them in correct sequence. (Past to Recent) A. Homo habilis B. Ho

Which of the following is not a steroid hormone?

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Following are the stages of cell division : A. Gap 2 phase B. Cytokinesis C. Synthesis phase D. Karyokinesis E. Gap 1 ph

Which one of the following factors will not affect the Hardy-Weinberg equilibrium?

Which of the following are Autoimmune disorders? A. Myasthenia gravis B. Rheumatoid arthritis C. Gout D. Muscular dystro

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Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : FS

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The "Ti plasmid" of Agrobacterium tumefaciens stands for

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Which one is the correct product of DNA dependent RNA polymerase to the given template? 3'TACATGGCAAATATCCATTCA5'

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Which of the following is not a natural/traditional contraceptive method?

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human bo

Which of the following statements is incorrect?

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A : Brea

Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?

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Consider the following statements : A. Annelids are true coelomates B. Poriferans are pseudocoelomates C. Aschelminthes

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Given below are two statements : Statement I : In the nephron, the descending limb of loop of Henle is impermeable to wa

The following diagram showing restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’ genes :

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Given below are two statements: Statement I: The presence or absence of hymen is not a reliable indicator of virginity.

Given below are two statements: Statement I: Gause's competitive exclusion principle states that two closely related spe

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The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord is absent. C.

Choose the correct statement given below regarding juxta medullary nephron.

Given below are two statements: Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callo

Given below are two statements : Statement I : Bone marrow is the main lymphoid organ where all blood cells including ly

Regarding catalytic cycle of an enzyme action, select the correct sequential steps : A. Substrate enzyme complex formati

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis.

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As per ABO blood grouping system, the blood group of father is $$\mathrm{B}^{+}$$, mother is $$\mathrm{A}^{+}$$ and chil

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Given below are two statements: Statement I: Mitochondria and chloroplasts both double membranes bound organelles. State

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The Henry's law constant $$(\mathrm{K}_{\mathrm{H}})$$ values of three gases $$(\mathrm{A}, \mathrm{B}, \mathrm{C})$$ in

Given below are two statements: Statement I: The boiling point of hydrides of Group 16 elements follow the order $$\math

Intramolecular hydrogen bonding is present in

Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order n-pentane >

The compound that will undergo SN1 reaction with the fastest rate is

Which one of the following alcohols reacts instantaneously with Lucas reagent?

1 gram of sodium hydroxide was treated with $$25 \mathrm{~mL}$$ of $$0.75 \mathrm{~M} \mathrm{~HCl}$$ solution, the mass

Arrange the following elements in increasing order of first ionization enthalpy: $$\mathrm{Li}, \mathrm{Be}, \mathrm{B},

The most stable carbocation among the following is :

Activation energy of any chemical reaction can be calculated if one knows the value of

Given below are two statements: Statement I : Aniline does not undergo Friedel-Crafts alkylation reaction. Statement II

Arrange the following elements in increasing order of electronegativity: N, O, F, C, Si Choose the correct answer from t

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Which plot of $$\ln \mathrm{k}$$ vs $$\frac{1}{\mathrm{~T}}$$ is consistent with Arrhenius equation?

The energy of an electron in the ground state $$\mathrm{(n=1)}$$ for $$\mathrm{He}^{+}$$ ion is $$\mathrm{-x} \mathrm{~J

In which of the following processes entropy increases? A. A liquid evaporates to vapour. B. Temperature of a crystalline

Which reaction is NOT a redox reaction?

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'Spin only' magnetic moment is same for which of the following ions? A. $$\mathrm{Ti}^{3+}$$ B. $$\mathrm{Cr}^{2+}$$ C.

The highest number of helium atoms is in

Among Group 16 elements, which one does NOT show -2 oxidation state?

The $$\mathrm{E}^{\circ}$$ value for the $$\mathrm{Mn}^{3+} / \mathrm{Mn}^{2+}$$ couple is more positive than that of $$

The reagents with which glucose does not react to give the corresponding tests/products are A. Tollen's reagent B. Schif

Identify the correct reagents that would bring about the following transformation.

In which of the following equilibria, $$\mathrm{K}_p$$ and $$\mathrm{K}_{\mathrm{c}}$$ are NOT equal?

A compound with a molecular formula of $$\mathrm{C}_6 \mathrm{H}_{14}$$ has two tertiary carbons. Its IUPAC name is :

Fehling's solution 'A' is

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Given below are two statements : Statement I: Both $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ and $$[\mathrm{CoF}_6]^{3-}$$

On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique

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For the reaction $$2 \mathrm{~A} \rightleftharpoons \mathrm{B}+\mathrm{C}, \mathrm{K}_{\mathrm{c}}=4 \times 10^{-3}$$. A

The pair of lanthanoid ions which are diamagnetic is

Given below are two statements : Statement I : $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ is a homoleptic complex whereas $

Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution fo

For the given reaction: 'P' is

The products $$\mathrm{A}$$ and $$\mathrm{B}$$ obtained in the following reactions, respectively, are $$\begin{aligned}

The rate of a reaction quadruples when temperature changes from $$27^{\circ} \mathrm{C}$$ to $$57^{\circ} \mathrm{C}$$.

During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is added to prev

Major products A and B formed in the following reaction sequence, are

The plot of osmotic pressure (П) vs concentration $$(\mathrm{mol} \mathrm{~L}^{-1})$$ for a solution gives a straight li

Identify the correct answer.

Identify the major product C formed in the following reaction sequence : $$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\m

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to

The work done during reversible isothermal expansion of one mole of hydrogen gas at $$25^{\circ} \mathrm{C}$$ from press

Consider the following reaction in a sealed vessel at equilibrium with concentrations of $$\mathrm{N}_2=3.0 \times 10^{-

A compound X contains $$32 \%$$ of A, $$20 \%$$ of B and remaining percentage of C. Then, the empirical formula of $$\ma

In a vernier callipers, $$(N+1)$$ divisions of vernier scale coincide with $$N$$ divisions of main scale. If $$1 \mathrm

If the monochromatic source in Young's double slit experiment is replaced by white light, then

A logic circuit provides the output $$Y$$ as per the following truth table : The expression of the output Y is :

The terminal voltage of the battery, whose emf is $$10 \mathrm{~V}$$ and internal resistance $$1 \Omega$$, when connecte

In a uniform magnetic field of $$0.049 \mathrm{~T}$$, a magnetic needle performs 20 complete oscillations in 5 seconds a

A wire of length '$$l$$' and resistance $$100 \Omega$$ is divided into 10 equal parts. The first 5 parts are connected i

A horizontal force $$10 \mathrm{~N}$$ is applied to a block $$A$$ as shown in figure. The mass of blocks $$A$$ and $$B$$

A tightly wound 100 turns coil of radius $$10 \mathrm{~cm}$$ carries a current of $$7 \mathrm{~A}$$. The magnitude of th

In an ideal transformer, the turns ratio is $$\frac{N_P}{N_S}=\frac{1}{2}$$. The ratio $$V_S: V_P$$ is equal to (the sym

The graph which shows the variation of $$\left(\frac{1}{\lambda^2}\right)$$ and its kinetic energy, $$E$$ is (where $$\l

Given below are two statements: Statement I: Atoms are electrically neutral as they contain equal number of positive and

A bob is whirled in a horizontal plane by means of a string with an initial speed of $$\omega \mathrm{~rpm}$$. The tensi

Consider the following statements A and B and identify the correct answer : A. For a solar-cell, the I-V characteristic

A thermodynamic system is taken through the cycle $$abcda$$. The work done by the gas along the path $$b c$$ is:

A thin spherical shell is charged by some source. The potential difference between the two points $$C$$ and $$P$$ (in V)

The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is $$2400 \

A particle moving with uniform speed in a circular path maintains:

If $$c$$ is the velocity of light in free space, the correct statements about photon among the following are: A. The ene

At any instant of time $$t$$, the displacement of any particle is given by $$2 t-1$$ ($$\mathrm{SI}$$ unit) under the in

A light ray enters through a right angled prism at point $$P$$ with the angle of incidence $$30^{\circ}$$ as shown in fi

In the following circuit, the equivalent capacitance between terminal A and terminal B is :

The quantities which have the same dimensions as those of solid angle are:

The maximum elongation of a steel wire of $$1 \mathrm{~m}$$ length if the elastic limit of steel and its Young's modulus

In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced curren

The mass of a planet is $$\frac{1}{10}$$th that of the earth and its diameter is half that of the earth. The acceleratio

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An unpolarised light beam strikes a glass surface at Brewster's angle. Then

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Two bodies $$A$$ and $$B$$ of same mass undergo completely inelastic one dimensional collision. The body $$A$$ moves wit

$$ { }_{82}^{290} X \xrightarrow{\alpha} Y \xrightarrow{e^{+}} Z \xrightarrow{\beta^{-}} P \xrightarrow{e^{-}} Q $$ In t

If $$x=5 \sin \left(\pi t+\frac{\pi}{3}\right) \mathrm{m}$$ represents the motion of a particle executing simple harmoni

A thin flat circular disc of radius $$4.5 \mathrm{~cm}$$ is placed gently over the surface of water. If surface tension

$$ \text { The output ( } Y \text { ) of the given logic gate is similar to the output of an/a } $$

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The p

A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is $$v$$ in the d

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If $$I$$ is the current in the c

The property which is not of an electromagnetic wave travelling in free space is that:

A small telescope has an objective of focal length $$140 \mathrm{~cm}$$ and an eye piece of focal length $$5.0 \mathrm{~

Two heaters $$A$$ and $$B$$ have power rating of $$1 \mathrm{~kW}$$ and $$2 \mathrm{~kW}$$, respectively. Those two are

The following graph represents the $$T$$-$$V$$ curves of an ideal gas (where $$T$$ is the temperature and $$V$$ the volu

The velocity $$(v)-$$ time $$(t)$$ plot of the motion of a body is shown below: The acceleration $$(a)-$$ time $$(t)$$

Choose the correct circuit which can achieve the bridge balance.

If the mass of the bob in a simple pendulum is increased to thrice its original mass and its length is made half its ori

The minimum energy required to launch a satellite of mass $$m$$ from the surface of earth of mass $$M$$ and radius $$R$$

A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to: A. hold the sheet th

A $$10 \mu \mathrm{F}$$ capacitor is connected to a $$210 \mathrm{~V}, 50 \mathrm{~Hz}$$ source as shown in figure. The

A metallic bar of Young's modulus, $$0.5 \times 10^{11} \mathrm{~N} \mathrm{~m}^{-2}$$ and coefficient of linear thermal

An iron bar of length $$L$$ has magnetic moment $$M$$. It is bent at the middle of its length such that the two arms mak

If the plates of a parallel plate capacitor connected to a battery are moved close to each other, then A. the charge sto

A force defined by $$F=\alpha t^2+\beta t$$ acts on a particle at a given time $$t$$. The factor which is dimensionless,