Prelims 2017 : Q23

Consider the following pairs: Commonly used/consumed materials Unwanted or controversial chemicals likely to be found in them

1. Lipstick - Lead

2. Soft drinks - Brominated vegetable oils

3. Chinese fast food -Monosodium glutamate

Which of the pairs given above is/are correctly matched?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2017 : Q24

Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays?

1. OLED displays can be fabricated on flexible plastic substrates.

2. Roll-up displays embedded in clothing can be made using OLEDs.

3. Transparent displays are possible using OLEDs.

Select the correct answer using the code given below:

(a) 1 and 3 only

(b) 2 only

(c) 1, 2 and 3

(d) None of the above statements is correct

Answer : C

Prelims 2017 : Q28

What is the application of Somatic Cell Nuclear Transfer Technology?

(a) Production of biolarvicides

(b) Manufacture of biodegradable plastics

(c) Reproductive cloning of animals

(d) Production of organisms free of diseases

Answer : C

Prelims 2017 : Q70

With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future?

1. Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants.

2. This technique helps in reducing the time required to develop new varieties of crop plants.

3. It can be used to decipher the host-pathogen relationships in crops.

Select the correct answer using the code given below:

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2016 : Q4

India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?

(a) It can use thorium in place of uranium for power generation

(b) It attain a global role in satellite-navigation

(c) It can drastically improve the efficiency of its fission reactors in power generation

(d) It can build fusion reactors for power generation

Answer : D

Prelims 2016 : Q12

With reference to 'Astrosat',' the astronomical observatory launched by India, which of the following statements is/are correct?

1. Other than USA and Russia, India is the only country to have launched a similar observatory into space.

2. Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth.

Select the correct answer using the code given below.

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2

Answer : D

Prelims 2016 : Q16

Consider the following statements: The Mangalyaan launched by ISRO

1. is also called the Mars Orbiter Mission

2. made India the second country to have a spacecraft orbit the Mars after USA

3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : C

Prelims 2016 : Q30

With reference to 'LiFi', recently in the news, which of the following statements is/are correct?

1. It uses light as the medium for high-speed data transmission.

2. It is a wireless technology and is several times faster than 'WiFi'.

Select the correct answer using the code given below.

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2

Answer : C

Prelims 2016 : Q56

In the context of the developments in Bioinformatics, the term 'transcriptome', sometimes seen in the news, refers to

(a) a range of enzymes used in genome editing

(b) the full range of mRNA molecules expressed by an organism

(c) the description of the mechanism of gene expression

(d) a mechanism of genetic mutations taking place in cells

Answer : B

Prelims 2016 : Q59

With reference to prepackaged items in India, it is mandatory to the manufacturer to put which of the following information on the main label, as per the Food Safety and Standards (Packaging and Labelling) Regulations, 2011?

1. List of ingredients including additives

2. Nutrition information

3. Recommendation, if any, made by the medical profession about the possibility of any allergic reactions

4. Vegetarian/nonvegetarian

Select the correct answer using the code given below.

(a) 1, 2 and 3

(b) 2, 3 and 4

(c) 1, 2 and 4

(d) 1 and 4 only

Answer : C

Prelims 2016 : Q84

Which of the following statements is/are correct? Viruses can infect

1. bacteria

2. fungi

3. plants

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2015 : Q18

With reference to 'fly ash' produced by the power plants using coal as fuel, which of the following statements is/are correct ?

1. Fly ash can be used in the production of bricks for building construction.

2. Fly ash can be used as a replacement for some of the Portland cement contents of concrete.

3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.

Select the correct answer using the codes given below.

(a) 1 and 2

(b) 2 only

(c) 1 and 3

(d) 3 only

Answer : A

Prelims 2015 : Q23

With reference to the use of nano technology in health sector, which of the following statements is/are correct ?

1. Targeted drug delivery is made possible by nanotechnology.

2. Nanotechnology can largely contribute to gene therapy.

Select the correct answer using the codes given below.

(a) 1 only

(b) 2 only

(c) Both 1and 2

(d) Neither 1 nor 2

Answer : C

Prelims 2015 : Q30

In the context of modern scientific research, consider the following statements about 'IceCube', a particle detector located at South Pole, which was recently in the news :

1. It is the world's largest neutrino detector, encompassing a cubic kilometre of ice.

2. It is a powerful telescope to search for dark matter.

3. It is buried deep in the ice.

Which of the statements given above is/are correct ?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2015 : Q32

With reference to 'Near Field Communication (NFC) Technology', which of the following statements is/are correct?

1. It is a contactless communication technology that uses electromagnetic radio fields.

2. NFC is designed for use by devices which can be at a distance of even a metre from each other.

3. NFC can use encryption when sending sensitive information.

Select the correct answer using the codes given below.

(a) 1 and 2 only

(b) 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : C

Prelims 2015 : Q45

The term 'Goldilocks Zone' is often seen in the news in the context of

(a) the limits of habitable zone above the surface of the Earth

(b) regions inside the Earth where shale gas is available

(c) search for the Earth-like planets in outer space

(d) search for meteorites containing precious metals

Answer : C

Prelims 2015 : Q95

With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:

1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.

2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.

3. Fuel cells produce electricity in the form of Alternating Current (AC).

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : A

Prelims 2014 : Q2

Lichens, which are capable of initiating ecolological succession even on a bare rock, are actually a symbiotic association of

(a) algae and bacteria

(b) algae and fungi

(c) bacteria and fungi

(d) fungi and mosses

Answer : B

Prelims 2014 : Q17

With reference to Agni-IV Missile, which of the following statements is/are correct ?

1. It is surface-to surface missile.

2. It is fuelled by liquid propellant only.

3. It can deliver one-tonne nuclear warheads about 7500km away.

Select the correct answer using the code given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : A

Prelims 2014 : Q37

Consider the following pairs : Vitamin Deficiency disease

1. Vitamin C : Scurvy

2. Vitamin D : Rickets

3. Vitamin E : Night blindness

Which of the pairs given above is/are correctly matched ?

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None

Answer : A

Prelims 2014 : Q45

Which one of the following is the process involved in photosynthesis?

(a) Potential energy is released to form free energy.

(b) Free energy is converted into potential energy and stored.

(c) Food is oxidized to release carbon dioxide and water.

(d) Oxygen is taken, and carbon dioxide and water vapour are given out.

Answer : B

Prelims 2014 : Q46

In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person ?

1. Iris scanning

2. Retinal scanning

3. Voice recognition

Select the correct answer using the code given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2014 : Q47

Which of the following statements is/are correct regarding vegetative propagation of plants ?

1. Vegetative propagation produces clonal population.

2. Vegetative propagation helps in eliminating the virus.

3. Vegetative propagation can be practiced most of the year.

Select the correct answer using the code given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : C

Prelims 2014 : Q50

Which of the following is/are the example/examples of chemical change ?

1. Crystallization of sodium chloride

2. Melting of ice

3. Souring of milk

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None

Answer : B

Prelims 2014 : Q52

Consider the following techniques/phenomena :

1. Budding and grafting in fruit plants

2. Cytoplasmic male sterility

3. Gene silencing

Which of the above is/are used to create transgenic crops ?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) None

Answer : B

Prelims 2014 : Q53

Consider the following statements :

1. Maize can be used for the production of starch.

2. Oil extracted from maize can be a feedstock for biodiesel.

3. Alcoholic beverages can be produced by using maize.

Which of the statements given above is/are correct ?

(a) 1 only

(b) 1 and 2 only

(c) 2 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2014 : Q54

Among the following organisms, which one does not belong to the class of other three ?

(a) Crab

(b) Mite

(c) Scorpion

(d) Spider

Answer : A

Prelims 2014 : Q60

Which one of the following is the correct sequence of a food chain ?

(a) Diatoms-Crustaceans-Herrings

(b) Crustaceans-Diatoms-Herrings

(c) Diatoms-Herrings-Crustaceans

(d) Crustaceans-Herrings-Diatoms

Answer : A

Prelims 2014 : Q67

With reference to technology for solar power production, consider the following statements :

1. 'Photovoltaics' is a technology that generates electricity by direct conversion of light into electricity, while 'Solar Thermal' is a technology that utilizes the Sun's rays to generate heat which is further used in electricity generation process.

2. Photovoltaics-generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC).

3. India has manufacturing base for Solar Thermal technology, but not for photovoltaics.

Which of the statements given above is/are correct ?

(a) 1 only

(b) 2 and 3 only

(c) 1, 2 and 3

(d) None

Answer : A

Prelims 2014 : Q72

Consider the following diseases :

1. Diphtheria

2. Chickenpox

3. Smallpox

Which of the above diseases has/have been eradicated in India ?

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None

Answer : B

Prelims 2014 : Q77

Consider the following :

1. Bats

2. Bears

(a) 1and 2 only

(b) 2 only

(c) 1, 2 and 3 only

(d) Hibernation cannot be observed in any of the above

Answer : C

Prelims 2014 : Q79

Which of the following adds/ads carbon dioxide to the carbon cycle on the planet Earth ?

1. Volcanic action

2. Respiration

3. Photosynthesis

4. Decay of organic matter

Select the correct answer using the code given below.

(a) 1 and 3 only

(b) 2 only

(c) 1, 2 and 4 only

(d) 1, 2, 3 and 4

Answer : C

Prelims 2013 : Q36

Fruits stored in a cold chamber exhibit longer storage life because

(a) exposure to sunlight is prevented

(b) concentration of carbon diodixe in the environment in increased

(c) rate of respiration in decreased

(d) there is an increase in humidity

Answer : C

Prelims 2013 : Q38

Ball bearings are used in bicycles, cars, etc., because

(a) the actual area of contact between the wheel and axle is increased

(b) the effective area of contact between the wheel and axle is increased

(c) the effective area of contact between the wheel and axle is reduced

(d) None of the above statements is correct

Answer : C

Prelims 2013 : Q39

Consider the following statements:

1. Size of the sun at dusk

2. Colour of the sun at dawn

3. Moon being visible at dawn

4. Twinkle of stars in the sky 5. Polestar being visible in the sky

Which of the above are optical illusions?

(a) 1, 2 and 3

(b) 3, 4 and 5

(c) 1, 2 and 4

(d) 2, 3 and 5

Answer : C

Prelims 2013 : Q40

Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this?

1. Dispersion

2. Refraction

3. Internal reflection

Select the correct answer using the codes given below:

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2013 : Q41

Many transplanted seedlings do not grow because

(a) the new soil does not contain favourable minerals

(b) most of the root hairs grip the new soil too hard

(c) most of the root hairs are lost during transplantation

(d) leaves get damaged during transplantation

Answer : C

Prelims 2013 : Q43

Which of the following statements is/are correct?

1. Viruses lack enzymes necessary for the generation of energy

2. Viruses can be cultured in any synthetic medium.

3. Viruses are transmitted from one organism to another by biological vectors only

Select the correct answer using the codes given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : A

Prelims 2013 : Q45

The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

(a) Gravity is the strongest of the four

(b) Electromagnetism acts only on particles with an electric charge

(c) Weak nuclear force causes radioactivity

(d) Strong nuclear force holds protons and neutrons inside the nucleus of an atom

Answer : A

Prelims 2013 : Q46

The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is/are the importance/importances of discovering this particle?

1. It will enable us to understand as to why elementary particles have mass.

2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them.

3. It will enable us to crease better fuels for nuclear mission.

Select the correct answer using the codes given below:

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : A

Prelims 2013 : Q47

Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to

1. Resist drought and increase absorptive area

2. Tolerate extremes of pH

3. Resist disease infestation

Select the correct answer using the codes given below:

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2013 : Q55

Recombination DNA technology (Genetic Engineering) allows genes to be transferred

1. across different species of plants

2. from animals to plants

3. from microorganisms to higher organisms

Select the correct answer using the codes given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2013 : Q96

Which of the following diseases can be transmitted from one person to another through tattooing?

1. Chikungunya

2. Hepatitis B

3. HIV-AIDS

Select the correct answer using the codes given below:

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : B

Prelims 2013 : Q100

Consider the following minerals:

1. Calcium

2. Iron

3. Sodium

Which of the minerals given above is/are required by human body for the contraction of muscles?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

No Content

Prelims 2011 : Q6

An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth.

(a) Does not exist at such distance

(b) Is neutralized by the attraction of the moon

(c) Provides the necessary speed for its steady motion

(d) Provides the necessary acceleration for its motion

Answer : D

Prelims 2011 : Q11

Which is the difference between asteroids and comets?

1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.

2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.

Which is the difference between asteroids and comets? 1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material. 2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury. 3. Comets show a perceptible glowing tail, while asteroids do not. Which of the statements given above is/are correct?

(a) 1 and 2 only

(b) 1 and 3 only

(c) 3 only

(d) 1, 2 and 3

Answer : B

Prelims 2011 : Q18

Consider the following:

1. Photosynthesis

2. Respiration

3. Decay of organic matter

4. Volcanic action

Which of the above add carbon dioxide to the carbon cycle on Earth?

(a) 1 and 4 only

(b)2 and 3 only

(c) 2, 3 and 4 only

(d)1, 2, 3 and 4

Answer : C

Prelims 2011 : Q20

The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason?

(a) Ice is a bad conductor of heat

(b) Since the surface of the lake is at the same temperature as the air, no heat is lost

(c) The density of water is maximum at 4°C

(d) None of the statements a, b and c given above is correct

Answer : A

Prelims 2011 : Q31

Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

(a) They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency

(b) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy

(c) They neutralize the free radicals produced in the body during metabolism

(d) They activate certain genes in the cells of the body and help delay the ageing process

Answer : C

Prelims 2011 : Q76

A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is

(a) O positive

(b) A positive

(c) B positive

(d) Cannot be determined on the basis of the given data

Answer : A

Prelims 2011 : Q88

When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because

(a) Water form soil cannot rise to aerial parts

(b) Roots are starved of energy

(c) Tree is infected by soil microbes

(d) Roots do not receive oxygen for respiration

Answer : B

Prelims 2011 : Q72

Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use?

(a) Aspartame is as sweet as table sugar, but unlike table sugar, it is not readily oxidized in human body due to lack of requisite enzymes

(b) When aspartame is used in food processing, the sweet taste remains, but it becomes resistant to oxidation.

(c) Aspartame is as sweet as sugar, but after ingestion into the body, it is converted into metabolites that yield no calories

(d) Aspartame is several times sweeter that table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation

Answer : D

Prelims 2011 : Q27

What is the difference between Bluetooth and Wi-Fi devices?

(a) Bluetooth uses 2.4 GHz radio frequency band, whereas Wi-Fi can use 2.4 GHz or 5 GHz frequency band

(b) Bluetooth is used for Wireless Local Area Networks (WLAN) only, whereas Wi-Fi is used for Wireless Wide Area Networks (WWAN) only

(c) When information is transmitted between two devices using Bluetooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other

(d) The statements (a) and (b) given above are correct in this context

Answer : D

Prelims 2011 : Q39

What is "Virtual Private Network"?

(a) It is a private compute network of an organization where he remote users can transmit encrypted information through the server of the organization.

(b) It is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted.

(c) It is a computer network in which users can access a shared pool of computing resources through a service provider

(d) None of the statements (a), (b) and (c) given above is a correct description of Virtual Private Network.

Answer : B

Prelims 2011 : Q43

Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when:

1. The orbit is geosynchronous.

2. The orbit is circular.

3. The orbit lies in the plane of the Earth's equator.

4. The orbit is at an altitude of 22,236 km.

Select the correct answer using the codes given below:

(a) 1, 2 and 3 only

(b) 1, 3 and 4 only

(c) 2 and 4 only

(d) 1, 2, 3 and 4

Answer : A

Prelims 2011 : Q45

At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?

1. It is possible to know the pedigree of livestock.

2. It is possible to understand the causes of all human diseases.

3. It is possible to develop disease-resistant animal breeds.

Which of the statements given above is/are correct?

(a) 1 and 2 only

(b) 2 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2011 : Q47

Microbial fuel cells are considered a source of sustainable energy. Why?

1. They use living organisms as catalysts to generate electricity from certain substrates.

2. They use a variety of inorganic materials as substrates.

3. They can be installed in waste water treatment plants to cleanse water and produce electricity.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2011 : Q57

The function of heavy water in a nuclear reactor is to

(a) Slow down the speed of neutrons

(b) Increase the speed of neutrons

(c) cool down the reactor

(d) stop the nuclear reaction

Answer : A

Prelims 2011 : Q65

A company marketing food products advertises that its items do not contain transfats. What does this campaign signify to the customers?

1. The food products are not made out of hydrogenated oils.

2. The food products are not made out of animal fats/oils.

3. The oils used are not likely to damage the cardiovascular health of the consumers.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : D

Prelims 2011 : Q74

What is the difference between a CFL and an LED lamp?

1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.

2. The average life span of a CFL is much longer than that of an LED lamp

3. A CFL is less energy-efficient as compared to an LED lamp.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Answer : C

Prelims 2011 : Q75

Recently, "oilzapper" was in the news. What is it?

(a) It is an eco-friendly technology for the remediation of oily sludge and oil spills

(b) It is the latest technology developed for under-sea oil exploration

(c) It is a genetically engineered high biofuel-yielding maize variety

(d) It is the latest technology to control the accidentally caused flames from oil wells.

Answer : A

Prelims 2011 : Q79

A new optical disc format know as the Blu-ray Disc (BD) is becoming popular. In What way is it different form the traditional DVD?

1. DVD supports standard Definition video while BD supports High definition Video.

2. Compared to a DVD, the BD format has several times more storage capacity.

3. Thickness of BD is 2.4 mm while that of DVD is 1.2 mm.

Which of the statements given above is/are correct?

(a) 1 only

(b) 1 and 2 only

(c) 2 and 3 only

(d) 1, 2 and 3

Answer : B

Prelims 2011 : Q97

A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?

1. The presence of ozone causes the reflection of radio waves to Earth.

2. Radio waves have a very long wavelength.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2

Answer : D

Prelims 2011 : Q99

A genetically engineered form of brinjal, known as the Bt-brinjal, has been developed. The objective of this is

(a) To make it pest-resistant

(b) To improve its taste and nutritive qualities

(c) To make it drought-resistant

(d) To make its shelf-life longer

Answer : A