If a dielectric material is placed between two plates of a capacitor, the net capacitance of the capacitor:

NUMS Mock 4
Physics
Electrostatics

The point at which an applied force produces linear motion but no rotatory motion is:

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Physics
Forces and Motion

Molecules of a gas at constant pressure for a fixed amount of gas have average kinetic energy X. Increasing temperature from 27˚C to 327˚C, the average K.E. of the molecules will become:

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Physics
Heat and Thermodynamics

Two point charges of +5 C and -12 C attract each other with a force of 1.48 N. charge of -5 C is added to each of these charges. Now the force will be:

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Physics
Magnetism and Electromagnetic Induction

Which one of the following properties is not exhibited by the longitudinal waves?

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Physics
Wave Motion and Sound

The electron current is chiefly due to:

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Physics
Wave Motion and Sound

Two spheres of the same size, one of mass 5 kg and the other of mass 50 g are dropped simultaneously from a tower. When they are about to touch the ground, they have the same:

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Physics
Gravitation

A cathode ray oscilloscope is displaying an AC signal. If one wave is completed in 2 cm along X- axis and time-base setting is 10 ms/cm, then frequency of AC signal will be:

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Physics
Wave Motion and Sound

A wire of resistance R is bent in the form of a circle the resistance between two points on the circumference of the wire and at the end of the diameter of circle is

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Physics
Current Electricity

To remove the huge amount of heat energy in a nuclear reactor, _____ is/are used

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Physics
Nuclear Physics

When a potential difference is applied across the ends of a uniform wire of length l and radius r, a current I flows in the wire. If same potential difference is applied to the ends of another wire of the same material but of length 2l and radius 2r, the current in the wire is:

NUMS Mock 4
Physics
Current Electricity

If a gas is heated at constant pressure, which of the following description(s) will apply?

I. The volume increased is proportional to the temperature

II. The kinetic energy of the molecules decrease

III. The kinetic energy of the molecules increases

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Physics
Heat and Thermodynamics

A body moving with velocity V can be stopped by a force F in direction of it. The same body moving with velocity 5 V can be stopped by a force 5F in distance equal to:

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Physics
Forces and Motion

Refrigerator is an example of:

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Physics
Heat and Thermodynamics

Red light is used in photographic dark room because of:

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Physics
Optics, Nature of Light and Optical Instruments

Which of the following statement shows that no work is done?

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Physics
Work, Power and Energy

A ship approaching a seaport at 10 km/h sends a sonic signal of frequency of 1000 Hz. What is the apparent frequency of the signal as received by a receiver on the seaport?

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Physics
Wave Motion and Sound

In a certain process, 400 J of heat energy is supplied to a system and at the same time 150 J of work is done by the system. The increase in internal energy of the system is _______.

NUMS Mock 4
Physics
Heat and Thermodynamics

An element whose atomic number is same but mass number is different is called:

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Physics
Nuclear Physics

An aircraft of wingspan 50 m flies horizontally at an area where the vertical component of the Earth’s magnetic field is 2.0 x 10-5T.

In order to produce an emf of 1 volt between the aircraft’s wingtips, its speed should be:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction

A special class of waves that does not need a material medium for their propagation are called

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Physics
Physics of Solids
Wave Motion and Sound

The speed of the sound in air is 332 m/s. The speed of sound at 22 degrees centigrade will be:

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Physics
Wave Motion and Sound

A guy is standing in a lift falling freely under gravity and releases a ball from hand. As seen by the ball, the boy:

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Physics
Gravitation

An automobile is moving forwards with uniform velocity due to the force exerted by its engine. If the force is doubled with the velocity remaining constant what happens to its total power?

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Physics
Work, Power and Energy

E/m of an electron is given by the relationship.

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Physics
Magnetism and Electromagnetic Induction

Is it possible to separate north pole only from bar magnet?

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Physics
Magnetism and Electromagnetic Induction

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1kV, its kinetic energy will be:

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Physics
Magnetism and Electromagnetic Induction

A current of 2A is passing through an inductor of 2mH. Energy stored by it is:

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Physics
Magnetism and Electromagnetic Induction

A pipe open at both ends has a length of 5m. The second harmonic frequency is _____. Velocity of sound in air = 340 m/s.

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Physics
Wave Motion and Sound

The half-life of a radioactive element depends upon:

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Physics
Nuclear Physics

If a wave can be polarized, it means, it is:

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Physics
Wave Motion and Sound

Heavy nucleus of atoms go through fission so that they can:

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Physics
Nuclear Physics

The energy supplied by the cell to the charge carriers is derived from the conversion of:

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Physics
Electrostatics

A car at rest starts moving with linear uniformly increasing velocity. After 20 seconds, it attains the maximum velocity of 80 m/s. What is the distance covered during this time interval?

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Physics
Forces and Motion

The current measuring part of the Avometer consists of a number of low resistors connected:

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Physics
Magnetism and Electromagnetic Induction

When the output power equals to one-half of the input power, efficiency of the transformer becomes:

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Physics
Work, Power and Energy

The half life of C14 is about:

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Physics
Nuclear Physics

When a charged particle is projected perpendicular to a magnetic field:

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Physics
Electrostatics

Which of the following is the percentage of the original quantity of a radioactive material left after five half-lives approximately.

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Physics
Nuclear Physics

An electron is suited midway between two parallel plates 0.5cm apart. One of the plates is maintained at a potential of 60 volts above the other. The force on the electron is (e=-1.6×10-19)

NUMS Mock 4
Physics
Electrostatics

In a reaction:
A+B 2C when equilibrium was attained, the concentration was
[A]=[B]=4 moles/dm3
[C]=6 moles/dm3
the equilibrium constant Kc of this reaction is:

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Chemistry
Chemical Equilibrium

Which of the following reaction takes place when acetone reacts with HCN?

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Chemistry
Aldehydes and Ketones

The following changes to the system at equilibrium have no effect on Kc except:

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Chemistry
Chemical Equilibrium

Which of the following substances exhibits hydrogen bonding?

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Chemistry
Chemical Bonding

Sodium Benzoate on reacting with soda lime forms:

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Chemistry
Carboxylic Acids and its Derivatives

The stability in the following structure is due to the:

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Chemistry
Chemical Bonding

Precipitation occurs when the product of ionic concentrations is:

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Chemistry
Chemical Equilibrium

The mass of proton is ______ times heavier than ______.

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Chemistry
Atomic Structure

The average atomic mass of Boron is 10.8. It has two isotopes of masses 10 and 11 respectively. What is the percentage of isotope with the average mass of 10?

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Chemistry
Stoichiometry

Hydrolysis of acyl chloride results in the formation of:

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Chemistry
Carboxylic Acids and its Derivatives

Which of the following solids is an example of a substance with a macromolecular structure?

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Chemistry
States of Matter – Gases, Liquids and Solids

If a molecule MX3 has zero dipole moment, the sigma bonding orbitals used by M are:

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Chemistry
Chemical Bonding

When fused PbBr2 is electrolyzed:

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Chemistry
Electrochemistry

H2 and O2 are diffusing under the same condition how much H2 gas will diffuse?

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Chemistry
States of Matter – Gases, Liquids and Solids

An ester is prepared by the reaction of:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

The relation between first and second ionization potentials of a given atom is:

NUMS Mock 4
Chemistry
Chemical Bonding

Strongest acid among the following is:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

The test used to distinguish among primary, secondary, and tertiary alcohols is:

NUMS Mock 4
Chemistry
Alcohols, Phenols and Ethers

The reduction of nitrile produced a compound of formula C3H7NH2. Which one of the following compounds would be produced if the same nitrile was hydrolyzed by heating with dilute hydrochloric acid?

NUMS Mock 4
Chemistry
Alkyl Halides and Amines

which of the following can not be used to convert butanoic acid to butanoyl chloride?

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

Which one of the following enthalpy changes is always exothermic?

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Chemistry
Thermochemistry

In alkanes, each carbon has hybridization

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Chemistry
Fundamental Principles of Organic Chemistry

Why is water added after the reduction process of aldehyde and ketone with LiAlH4?

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Chemistry
Aldehydes and Ketones

IUPAC name of C6H5-CH2-CH2-NH2 is:

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Chemistry
Fundamental Principles of Organic Chemistry

A system at equilibrium can be disturbed by:

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Chemistry
Chemical Equilibrium

If we balanced the following reaction , what is the net ionic charge on the right side of the equation?

__H+ +___ MnO4- + ____ Fe2+ →___ Mn2+ + ___ Fe3+ + ___ H2O

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Chemistry
Electrochemistry

Who discovered positive rays (also called protons) and when?

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Atomic Structure

Which of the following molecules has the largest number of shared pairs of electrons?

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Chemistry
Chemical Bonding

Solid CO2 dry ice has a structure just like:

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Chemistry
States of Matter – Gases, Liquids and Solids

The reaction: Cl2 + H2O→ HCl + HOCl is an example of:

NUMS Mock 4
Chemistry
Electrochemistry

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

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Chemistry
Thermochemistry

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

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Chemistry
s and p Block Elements
Environmental Chemistry

For a sub shell I = 2 and m = -2, -1, 0 , +1, +2, it implies that it has ____ space orientation.

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Chemistry
Atomic Structure

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

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Chemistry
Aldehydes and Ketones

Which of the following compounds possesses a single covalent bond between carbon and hydrogen?

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Chemistry
Hydrocarbons

If concentration time graph of a reactant indicates a constant half life, then the order reaction with respect to that reactant is:

NUMS Mock 4
Chemistry
Reaction Kinetics

The spectrum of He is expected to be similar to that of:

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Chemistry
Atomic Structure

If concentration time graph of a reactant indicates a constant half life, then the order reaction with respect to that reactant is:

NUMS Mock 4
Chemistry
Reaction Kinetics

Which of these in an aqueous solution of equal concentration has the lowest pH?

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

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Chemistry
Aldehydes and Ketones

A/An ______ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.

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Biology
Nutrition

An Rh negative woman is married to an Rh positive man whose father was also Rh negative. What are the chances that their child will be affected?

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Biology
Variation and Genetics

To overcome infertility, which technique is used?

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Biology
Reproduction

A man who has type AB blood cannot father a child with type ___ blood, because he would pass on either the ___ or the B allele to all of his offspring.

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Biology
Variation and Genetics

Haploid and monoploid numbers of chromosomes of hexaploid wheat are:

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Biology
Chromosomes and DNA

The bacteria can cope in unfavorable condition by producing:

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Biology
Kingdom Prokaryote

Which bond is present between the nucleotides of DNA:

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Biology
Chromosomes and DNA

Four events in the transmission of nerve impulses across synapses are:

I. depolarisation of the presynaptic membrane

II. propagation of postsynaptic action potential

III. reabsorption of the transmitter substance

IV. release of transmitter substance into the synaptic cleft

In which sequence do these events occur?

FIRST -> LAST

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Biology
Coordination and Control
D) IV, III, I and II

_______ is involved in lipid synthesis/metabolism.

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Biology
Cell Structure and Function

What are the functions of the inter, motor and sensory neurons in a reflex response?

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Biology
Coordination and Control

The region where the impulse moves from one neuron to another is called ______.

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Biology
Coordination and Control

What is the role of cholesterol in the cell membrane?

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Biology
Cell Structure and Function

The type of plastids found in roots of plants are _____.

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Biology
Cell Structure and Function

In chemiosmosis, the proton (H+) moves from _______.

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Biology
Bioenergetics

Which of the following statements are true for mitochondria and chloroplasts?

A. ATP synthesis is seen in both
B. Outer membrane has more surface area in both
C. Circular naked DNA, RNA, and 70 ribosomes are seen in both
D. Oxidative phosphorylation occurs in both

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Biology
Cell Structure and Function

The function of respiratory passage, Cilia is to keep the airways clear of:

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Biology
Gaseous Exchange

Hepatic and Pancreatic secretions are also stimulated by a hormone called:

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Biology
Coordination and Control

The end product of glycolysis in anaerobic respiration is:

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Biology
Bioenergetics

The movement of plants in response to touch stimulus is called:

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Biology
Support and Movement

Given figures shows:

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Biology
Gaseous Exchange

Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by?

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Biology
Cell Structure and Function

Enzymes work by lowering the ______ of the reactions they catalyse:

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Biology
Enzymes

In which of the following growth phases, the number of bacteria increases the most rapidly?

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Biology
Kingdom Protista

Which one of the following is most likely to occur in a boy during puberty?

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Biology
Reproduction

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.

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Biology
Biological Molecules

Most enzymes have an optimum temperature of around:

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Biology
Enzymes

Which of the following part of the cell is described as a fluid mosaic?

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Biology
Cell Structure and Function

Lock and Key Model for enzyme action propose by Emil Fischer suggests that:

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Biology
Enzymes

Which of the following enzymes is used to join DNA fragments?

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Biology
Chromosomes and DNA

Two species can avoid competition and better use the environment’s resources by occupying different ____.

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Biology
Evolution

The enzyme found in saliva responsible for the digestion of carbohydrates is:

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Biology
Enzymes

At what point are two populations descending from the same ancestral stock considered separate species?

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Biology
Evolution

Now-a-days every newborn gets regular shots of vaccine for polio. It contains _________ for polio to make a child immune against this disease.

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Biology
Bio-diversity | Variety of Life

Steroids consist of _____ 6 membered carbon rings and one 5 membered carbon ring.

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Biology
Biological Molecules

Golgi complex is responsible for the formation of secretory granules in _____ cell.

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Biology
Cell Structure and Function

Chest cavity is bounded by ribs and muscles on the sides, while the floor of chest cavity is called:

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Biology
Gaseous Exchange

The idea that opposed the idea of abiogenesis was proposed by?

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Biology
Cell Structure and Function

Which type of protein structure contains the three dimensional structure?

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Biology
Biological Molecules

The uterus of the female reproductive system opens into the _____.

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Biology
Reproduction

Which substance might include this molecule?

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Biology
Biological Molecules

Mutations can occur in:

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Biology
Chromosomes and DNA

In genetics, the term locus refers to the ______ of the gene on the chromosome.

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Biology
Chromosomes and DNA

The system responsible for fighting the pathogens is:

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Biology
Transport

Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

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Biology
Biological Molecules

The thickest chamber of the human heart is:

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Biology
Transport

Which of the following RNA sequences would be transcribed from the DNA sequence ATGGCTAGGAC?

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Biology
Chromosomes and DNA

Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

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Biology
Evolution

What is the size of Parvovirus?

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Biology
Bio-diversity | Variety of Life

The cells which play a very important role in developing immunity are:

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Biology
Transport

How many fatty acid molecules are normally present in a fat or oil molecule?

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Biology
Biological Molecules

The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

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Biology
Enzymes

Which organ(s) in the male reproductive system produce gametes?

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Biology
Reproduction

Icosahedral viruses have how many faces?

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Biology
Variety of Life

Which of the following animals can survive without drinking water?

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Biology
Nutrition

The rate of photosynthesis and respiration may equal one another at what time?

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Biology
Bioenergetics

When the dentist came in, my tooth was stopped aching out of fear that I might lose my tooth.

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Demonstrate the correct use of articles and prepositions:

Gold is _______ precious metal.

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English
Grammar and Punctuation

The word opposite in the meaning to presume is:

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English
Key Vocabulary

John ____ to be a doctor.

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Demonstrate control of tenses and sentence structure.

She thanked me for what I ____

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Which part of the sentence is grammatically incorrect. A ship laden with merchandise got drowned in the Pacific Ocean.

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Select the word or phrase which is closest in meaning to the underlined words.

Due to his continuous mischievous activities, he has become a rogue person.

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English
Key Vocabulary

Demonstrate the correct use of articles and prepositions:

___________ man is mortal.

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English
Fill in the blank

Complete the sentence using the grammatically correct word or phrase.

Committee _______ issued a report.

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English
Grammar and Punctuation

Which of the following sentences is grammatically incorrect?

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English
Grammar and Punctuation

The parents were stunned when they saw that children had created complete _____ in the bedroom.

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English
Fill in the blank

By the next month, we shall ____ (have) the project.

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English

The word opposite in the meaning to path is:

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English
Key Vocabulary

The new teacher showed no _____ about hitting the students.

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English
Fill in the blank

Choose the correct sentence.

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