Match List-I with List-II

Choose the correct answer from the options given below

The area of a rectangular field (in m² ) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is

The volume occupied by the molecules contained in 4.5 kg water at STP, if the intermolecular forces vanish away is

The ratio of the distances travelled by a freely falling body in the 1^st , 2^nd , 3^rd and 4^th second

The graph which shows the variation of the de Broglie wavelength (λ) of a particle and its associated momentum (p) is

The peak voltage of the ac source is equal to

A ball is projected with a velocity, \(10\, ms^{−1} \), at an angle of \( 60^\circ \) with the vertical direction. Its speed at the highest point of its trajectory will be

The angle between the electric lines of force and the equipotential surface is

Two point charges −q and +q are placed at a distance of L, as shown in the figure. The magnitude of electric field intensity at a distance R (R ≫ L) varies as:

A wheat stone bridge is used to determine the value of unknown resistance X by adjusting the variable resistance Y as shown in the figure. For the most precise measurement of X , the resistances P and Q :

An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms⁻¹. The frictional force opposing the motion is 3000 N . The minimum power delivered by the motor to the lift in watts is : (g = 10 ms⁻²)

A body of mass \(60\,g\) experiences a gravitational force of \(3.0\,N\), when placed at a particular point. The magnitude of the gravitational field intensity at that point is

Plane angle and solid angle have

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1. If the fragments having equal mass flyoff along mutually perpendicular directions with speed v, the speed of the third (lighter) fragment is

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad ∕ s² is

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is

The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is

An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among 1, 2, 3 and 4 is

The displacement-time graphs of two moving particles make angles of \(30^ \circ\) and \(45^ \circ\) with the x-axis as shown in the figure. The ratio of their respective velocity is

When two monochromatic lights of frequency, v and \(\displaystyle \frac{v}{2}\) are incident on a photoelectric metal, their stopping potential becomes \(\displaystyle \frac{V_s}{2}\) and \(\displaystyle V_s\) respectively. The threshold frequency for this metal is

A spherical ball is dropped in a long column of a highly viscous liquid.The curve in the graph shown, which represents the speed of the ball (v) as a function of time (t) is

If a soap bubble expands, the pressure inside the bubble

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring.
Reason (R): A coil spring of copper has more tensile strength than a steel spring of same dimensions.
In the light of the above statements, choose the most appropriate answer from the options given below

In the given circuits (a), (b), and (c), the potential drop across the two p − n junctions are equal in

In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be

The truth table for the given logic circuit is

A square loop of side 1m and resistance 1Ω is placed in a magnetic field of 0.5 T . If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is

A series LCR circuit with inductance 10 H , capacitance 10 μF , resistance 50 Ω is connected to an ac source of voltage, V = 200 sin(100t) volt. If the resonant frequency of the LCR circuit is v₀ and the frequency of the ac source is v, then

A big circular coil of 1000 turns and average radius 10 m is rotating about its horizontal diameter at 2 rad⁻¹. If the vertical component of earth's magnetic field at that place is 2 × 10⁻⁵T and electrical resistance of the coil is 12.56Ω, then the maximum induced current in the coil will be

Two pendulums of length \(121\, cm\) and \(100\, cm\) start vibrating in phase. At some instant, the two are at their mean position in the same phase. The minimum number of vibrations of the shorter pendulum after which the two are again in phase at the mean position is:

If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is

Two hollow conducting spheres of radii R₁ and R₂ (R₁ ≫ R₂) have equal charges. The potential would be

A capacitor of capacitance C = 900pF is charged fully by 100V battery B as shown in figure (a). Then it is disconnected from the battery and connected to another uncharged capacitor of capacitance C = 900pF as shown in figure (b). The electrostatic energy stored by the system (b) is

In the given nuclear reaction, the element X is :
\(\displaystyle ^{23} _{11} \,Na \rightarrow\,X+e^+ + v\)

In a Young’s double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same-region of the screen is :

Let T1 and T2 be the energy of an electron in the first and second excited states of hydrogen atom, respectively. According to the Bohr’s model of an atom, the ratio T1 : T2 is :

A light ray falls on a glass surface of refractive index \(\sqrt{3}\) , at an angle \(60^ \circ\) . The angle between the refracted and reflected rays would be :

The transparent media A and B are separated by a plane boundary. The speed of light in those media are \(1.5 \times 10^ 8 \,m/s\) and \(2.0 \times 10^8 \,m/s\), respectively. The critical angle for a ray of light for these two media is :

As the temperature increases, the electrical resistance

A nucleus of mass number of 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is :

Two resistors of resistance, 100 Ω and 200 Ω are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in 100 Ω to that in 200 Ω in a given time is

A copper wire of length 10 m and radius \(\displaystyle \left(\frac{10{^{−2}}}{\sqrt{\pi}}\right)\) m has electrical resistance of 10 Ω. The current density in the wire for an electric field strength of 10 (V ∕ m) is

The dimensions [\(M LT^{−2}A^{−2}\)] belong to the

A long solenoid of radius 1mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

Match List-I with List-II

When light propagates through a material medium of relative permittivity \(\epsilon_r\) and relative permeability \(\mu_r\), the velocity of light, v is given by (c-velocity of light in vacuum)

From Ampere's circuital law for a long straight wire of circular cross section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is:

Given below are two statements.
Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (Idl) of a current carrying conductor only.
Statement II : Biot-Savart's law is analogous to Coulomb's inverse square law of charge q, with the former being related to the field produced by a scalar source, Id while the later being produced by a vector source, q. In light of above statements choose the most appropriate answer from the options given below

The energy that will be ideally radiated by a 100kW transmitter in 1 hour is

A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is

Which one is not correct mathematical equationfor Dalton's Law of partial pressure?
Here p = total pressure of gaseous mixture

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In a particular point defect, anionic solid is electrically neutral, even if few of its cations are missing from its unit cells.
Reason (R) : In an ionic solid, Frenkel defectarises due to dislocation of cation from its latticesite to interstitial site, maintaining overall electrical neutrality.
In the light of the above statements, choose the most appropriate answer from the options given below:

Gadolinium has a low value of third ionisationenthalpy because of

The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is
[Given aK_a, of CH₃COOH = 4.57]

Identify the incorrect statement from the following

Given below are two statements:
Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.
Statement II : O-nitrophenol, m-nitrophenol and P-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.
In the light of the above statements, choose themost appropriate answer from the options givenbelow:

What mass of 95% pure CaCO₃ will be required to neutralise 50 mL of 0.5 M HCl solution according to the following reaction?

[Calculate upto second place of decimal point]

The IUPAC name of an element with atomicnumber 119 is

Choose the correct statement:

Given below are two statements:
Statement I: In the coagulation of a negativesol, the flocculating power of the three given ionsis in the order
AI³⁺ > Ba²⁺ > Na⁺
Statement II : In the coagulation of a positivesol, the flocculating power of the three given saltsis in the orderNaCl > Na₂SO₄ > Na₃PO₃
In the light of the above statements, choose themost appropriate answer from the options givenbelow:

Which of the following p-V curve representsmaximum work done?

Given below are two statements :
Statement I : Primary aliphatic amines react with HNO₂ to give unstable diazonium salts.
Statement Il : Primary aromatic amines reactwith HNO₂ to form diazonium salts which are stable even above 300 K.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which amongst the following is incorrect statement?

What is Y in the above reaction?

Which statement regarding polymers isnot correct?

Given below are half cell reactions:

Will the permanganate ion, MnO₄^- liberate O₂ from water in the presence of an acid?

The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?

The incorrect statement regarding enzymes is

The IUPAC name of the complex - [Ag(H₂O)₂] [Ag(CN)₂] is :

Match List-I with List-II.

Choose the correct answer from the options givenbelow :

Amongst the following which one will havemaximum 'lone pair - lone pair' electron repulsions?

At 298 K, the standard electrode potentials of
\(\displaystyle \frac{Cu^{2+}}{Cu}\), \(\displaystyle \frac{Zn^{2+}}{Zn}\), \(\displaystyle \frac{Fe^{2+}}{Fe}\), and \(\displaystyle \frac{Ag^{+}}{Ag}\) are \(0.34\, \text{V}\), \(-0.76\, \text{V}\), \(-0.44\, \text{ V}\) and \(0.80\, \text{V}\), respectively.
On the basis of standard electrode potential, predict which of the following reaction cannot occur?

Identify the incorrect statement from thefollowing:

In one molal solution that contains 0.5 mole of asolute, there is

Given below are two statements: one is labelledas Assertion (A) and the other is labelled asReason (R).
Assertion (A) : ICI is more reactive than I2.
Reason (R): I-CI bond is weaker than I-I bond.
In the light of the above statements, choose themost appropriate answer from the options givenbelow:

Which compound amongst the following is not anaromatic compound?

Given below are two statements:
Statement I : The boiling points of the following hydrides of group 16 elements increases in the order
H₂O < H₂S < H₂Se < H₂Te.
Statement II: The boiling points of these hydrides increase with increase in molar mass.
In the light of the above statements, choose themost appropriate answer from the options givenbelow :

Match List-I with List-II

Choose the correct answer from the options givenbelow :

Which of the following sequence of reactions issuitable to synthesize chlorobenzene?

Given below are two statements :
Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons ofcomparable molecular masses because of weakmolecular association in aldehydes and ketones dueto dipole - dipole interactions.
Statement II : The boiling points of aldehydesand ketones are lower than the alcohols of similarmolecular masses due to the absence of H-bonding.
In the light of the above statements, choose themost appropriate answer from the given below:

Match List-I with List-II.

Choose the correct answer from the options givenbelow:

The incorrect statement regarding chirality is

Match List-I with List-II.

Choose the correct answer from the options givenbelow:

Which of the following statement is not correctabout diborane?

The given graph is a representation of kinetics ofa reaction.

The y and x axes for zero and first order reactions,respectively are

Match List-I with List-II.

Choose the correct answer from the options givenbelow:

A 10.0 L flask contains 64g ofoxygen at \(\text{27}^\circ C\). (Assume O₂ gas is behaving ideally). The pressure inside theflask in bar is (Given R = 0.0831 L bar K^-1 mol^-1)

For a first order reaction A → Products, initialconcentration of A is 0.1 M, which becomes0.001 M after 5 minutes. Rate constant for thereaction in min^-1 is

The order of energy absorbed which is responsiblefor the color of complexes

\(\text{3O}_2\,\left(g\right) \rightarrow\, \text{2O}_3 \left(g\right) \)
for the above reaction at 298 K, K_c is found to be \(3.0 \times 10^-{59}\). If the concentration of O₂ at equilibrium is 0.040 M then concentration of O₂ in M is

Find the emf of the cell in which the followingreaction takes place at 298 K

Which one of the following is not formed whenacetone reacts with 2-pentanone in the presenceof dilute NaOH followed by heating?

The correct IUPAC name of the following compound is

If radius of second Bohr orbit of the He⁺ ion is 105.8 pm, what is the radius of third Bohr orbit of Li²⁺ ion?

Compound X on reaction with O³ followed by Zn/H₂O gives formaldehyde and 2-methyl propanal as products.
The compound X is

In the neutral or faintly alkaline medium, KMnO₄ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from

The pollution due to oxides of sulphur getsenhanced due to the presence of:
(a) particulate matter
(b) Ozone
(c) hydrocarbons
(d) hydrogen peroxide
Choose the most appropriate answer from theoptions given below:

Given below are two statements:
Statement I : In Lucas test, primary, secondaryand tertiary alcohols are distinguished on the basisof their reactivity with conc. HCl + ZnCl₂, known as Lucas Reagent.
Statement II : Primary alcohols are most reactive and immediately produce turbidity at roomtemperature on reaction with Lucas Reagent.
In the light of the above statements, choose the mostappropriate answer from the options given below:

Copper crystallises in fcc unit cell with cell edgelength of \(3.608 \times 10^8\) cm. The density of copper is 8.92 g cm^-3. Calculate the atomic mass of copper.

The product formed from the following reactionsequence is

Identify the incorrect statement related to Pollination:

Given below are two statements:
Statement I : Cleistogamous flowers are invariably autogamousaol.
Statement II : Cleistogamy is disadvantageousas there is no chance for cross pollination.
In the light of the above statements, choose thecorrect answer from the options given below:

Read the following statements on lipids and find out correct set of statements:
(a) Lecithin found in the plasma membrane is a glycolipid.
(b) Saturated fatty acids possess one or more c =c bonds.
(c) Gingely oil has lower melting point, hence remains as oil in winter.
(d) Lipids are generally insoluble in water but soluble in some organic solvents.
(e) When fatty acid is esterified with glycerol, monoglycerides are formed.
Choose the correct answer from the options given below:

Transposons can be used during which one of the following?

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (-) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (-) for another species involved in the interaction?

In the following palindromic base sequence of DNA, which one can be cut easily by a particular restriction enzyme?

Which one of the following will accelerate phosphorus cycle?

Match the plant with the kind of life cycle itexhibits.

Choose the correct answer from the options given below:

Match List - I with List - II.

Choose the correct answer from the options given below:

What is the role of large bundle sheath cells found around the vascular bundles in C₄ plants?

Which of the following is not a connective tissue?

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
(a) It results in the formation of haploid gametes.
(b) Differentiation of gamete occurs after the completion of meiosis.
(c) Meiosis occurs continuously in a mitotically dividing stem cell population.
(d) It is controlled by the Luteinizing hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary.
(e) It is initiated at puberty.
Choose the most appropriate answer from the options given below:

Which of the following is a correct statement?

If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness ?

Match List - I with List - II.

Choose the correct answer from the options given below :

DNA polymorphism forms the basis of:

The device which can remove particulate matter present in the exhaust from a thermal power plant is:

Given below are two statements:
Statement I : Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance.
Statement II: Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height.
In the light of the above statements, choose the correct answer from the options given below:

Read the following statements about the vascular bundles
(a) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
(b) Conjoint closed vascular bundles do not possess cambium.
(c) In open vascular bundles, cambiumn is present in between xylem and phloem.
(d) The vascular bundles of dicotyledonous stem possess endarch protoxylem.
(e) In monocotyledonous root, usually there are more than six xylem bundles present.
Choose the correct answer from the options given below:

The flowers are Zygomorphic in:
(a) Mustard
(b) Gulmohar
(c) Cassia
(d) Datura
(e) Chilli
Choose the correct answer from the options given below:

Identify the correct set of statements:
(a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea.
(b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin.
(c) Stem is flattened and fleshy on Opuntia and modified to perform the function of leaves.
(d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration.
(e) Subaerially growing stems in grasses and strawberry help in vegetative propagation.
Choose the correct answer from the options given below:

Which of the following is incorrectly matched?

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

Hydrocolloid carrageen is obtained from

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:

Given below are two statements:
Statement I : The primary CO₂ acceptor in C₄ plants is phosphoenolpyruvate and is found in the mesophyll cells.
Statement II : Mesophyll cells of C, plants lack RuBisCo enzyme.
In the light of the above statements, choose the correct answer from the options given below:

"Girdling Experiment" was performed by plant physiologists to identify the plant tissue through which:

XO type of sex determination can be found in

Addition of more solutes in a given solution will:

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of functions to different segment, the methodology adopted by him is called as:

Which of the following occurs due to the presence of an autosome linked dominant trait?

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Mendel's law of Independent assortmnent does not hold goods for the genes that are located closely on the same chromosome.
Reason (R) : Closely located genes asSort independently.
Answer from the options given below:

Which part of the fruit, labelled in the given figuremakes it a false fruit?

The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood.
(a) It is also called early wood.
(b) In the spring season cambium produces xylem elements with narrow vessels.
(c) It is lighter in colour.
(d) The springwood along with autumnwood shows alternate concentric rings forming annual rings.
(e) It has lower density.
Choose the correct answer from the options given below:

Given below are two statements:
Statement I : Fatty acids and glycerols cannot be absorbed into blood.
Statemnent II : Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.
In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements:
Statement I : The release of sperms into the seminiferous tubules is called spermiation.
Statement II : Spermiogenesis is the process of formation of sperms from spermatogonia.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is not the function of theconducting part of the respiratory system?

Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin

Under normal physical conditions in human beings every 100 ml oxygenated blood can deliver ______ ml of O₂ to the tissues.

Tegmina in cockroach arises from

In situ conservation refers to:

Detritivores breakdown detritus into smaller particles. This process is called:

A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C₆H₁₂O₆ then what is the formula for maltose?

Identify the asexual reproductive structure associated with Penicillium:

Select the incorrect statement with reference to mitosis:

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

In the taxonomic categories which hierarchical arrangement in ascending order is correct in the case of animals?

In which of the following animals, does the digestive tract have additional chambers like crop and gizzard?

Given below are two statements:
Statement I : Mycoplasma can pass through less than 1 micron filter size.
Statement II : Mycoplasma are bacteria with a cell wall.
In the light of the above statements, choose the most appropriate answer from the options given below:

Nitrogenous waste is excreted in the form of pellet or paste by:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : All vertebrates are chordates but all chordates are not vertebrates.
Reason (R) : Notochord is replaced by the vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is a correct match for disease and its symptoms?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Osteoporosis is characterised by decreased bone mass and increased chances of fracture.
Reason (R) : Common cause of osteoporosis is increased levels of oestrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:

In an E. coli strain the i gene gets mutated and its product can not bind the inducer molecule. If the growth medium is provided with lactose, what will be the outcome?

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?

Which of the following is present between the adjacent bones of the vertebral column?

Regarding Meiosis, which of the statements is incorrect?

Given below are two statements:
Statement I : Autoimmune disorder is a condition where the body defense mnechanism recognizes its own cells as foreign bodies.
Statement II :Rheumatoid arthritis is a condition where the body does not attack self cells.
In the light of the above statemnents, choose the most appropriate answer from the options given below:

Natural selection where more individuals acquire a specific character value other than the mean character value, leads to:

Given below are two statements:
Statement I : The coagulum is formed of a network of threads called thrombins.
Statemnent II : Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer from the options given below:

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:

In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:

At which stage of life the oogenesis process is initiated?

Lippes loop is a type of contraceptive used as:

Which of the following functions is not performed by secretions from salivary glands?

If 8 Drosophila in a laboratory population of 80died during a week, the death rate in the populationis ______ individuals per Drosophila per week.

Given below are two statements:
Statement I : Restriction endonucleases recognise specific sequences to cut DNAknown as palindromic nucleotide sequences.
Statement II : Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.
In the light of the above statements, choose the most appropriate answer from the options given below:

Statements related to human insulin are given below:
Which statement(s) is/are correct about genetically engineered Insulin?
(a) Pro-hormone insulin contain extra stretch of Cpeptide.
(b) A peptide and B-peptide chains of insulin were 1 produced separately in E. coli, extracted and combined by creating a disulphide bond between them.
(c) Insulin used for treating Diabetes was extracted from Cattles and Pigs.:RpP.
(d) Pro-hormone insulin needs to be processed for converting into a mature and functional hormone.
(e) Some patients develop allergic reactions to the foreign insulin.
Choose the most appropriate answer from the options given below:

Given below are two statements:
Statenent I : In a scrubber, exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II : Particular matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.lotze1.
In the light of the above statements, choose the most appropriate answer from the options given below:

The recombination frequency between the genesa &c is 5%, b & c is 15%, b & d is 9%o, a & b is 20%,c & d is 24% and a & d is 29%. What will be thesequence of these genes on a linear chromosome?

Match list I with list II.

Choose the correct answerfrom the options given below :

Match list I with list II with respect to methods ofcontraception and their respective actions.

Choose the correct answer fromn the options given below:

Which of the following are not the effects of Parathyroid hormone?
(a) Stinulates the process of bone resorption,.
(b) Decreases Ca2+ level in blood,.
(c) Reabsorption of Ca by renal tubules,.
(d) Decreases the absorption of Ca² from digested food.
(e) Increases metabolism of carbohydrates.
Choose the most appropriate answer from the options given below:

Select the incorrect statement with respect to acquired immunity:

Ten E. coli cells with ¹⁵N- dsDNA are incubated in a medium containing ¹⁴N nucleotides. After 60 minutes, how many E. coli cells will have DNA totally free from ¹⁵N?

Which of the following is not a desirable feature of a cloning vector ?

Match list I with list II.

Choose the correct answer fromn the options given below:

Which one of the following statements is correct ?

Select the incorrect statement regarding synapses

Which of the following statements is not true?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Polymerase chain reaction is used in DNA amplification.
Reason (R): The ampicillin resistant gene is used as a selectable marker to check transformation.
In the light of the above statements, choose the correct answer from the options given below:

The process of translation of mRNA to proteins begins as soon as:

The gaseous plant growth regulator is used in plants to:

Exoskeleton of arthropods is composed of:

Which of the following is not observed during anapoplastic pathway?

Which of the following is not a method of ex situ conservation?

Which one of the following statements is not true regarding gel electrophoresis technique?

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis?
It involves:

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for:

Which one of the following plants does not show plasticity?

Which one of the following statements cannot be connected to Predation?

What amount of energy is released from glucose during lactic acid fermentation?

Given below are two statements:
Statement I : Decomposition is a process in which the detritus is degraded into simpler substances by microbes.
Statement II: Decomposition is faster if the detritus is rich in lignin and chitin.
In the light of the above statements, choose the correct answer from the options given below

Read the following statements and choose the set of correct statements:
(a) Euchromatin is loosely packed chromatin.
(b) Heterochromatin is transcriptionally active.
(c) Histone octamer is wrapped by negatively charged DNA in nucleosome.
(d) Histones are rich in lysine and arginine.
(e) Atypical nucleosome contains 400 bp of DNA helix.
Choose the correct answer from the options given below:

Which one of the following plants shows vexillary aestivation and diadelphous stamens?

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:
(a) Secretion of secondary metabolites and their deposition in the lumen of vessels.
(b) Deposition of organic cómpounds like tannins and resins in the central layers of the stem.
(c) Deposition of suberin and aromatic substances in the outer layer of the stem.
(d) Deposition of tannins, gum, resin and aromatic substances in the peripheral layers of the stem.
(e) Presence of parenchyma cells, functionally active xylem elements and essential oils.
Choose the correct answer from the options given below:

Which one of the following never occurs during mitotic cell division?

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants?