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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

101.

GDP stands for __________(a) General Disorder of Pancreas(b) Gross Domestic Product(c) Good Domestic Price(d) Goods Delay PriceThis question was addressed to me in a national level competition.The question is from Food Production Strategies topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (b) Gross Domestic Product

To explain I would SAY: GDP STANDS for Gross Domestic Product. India is MAINLY an agricultural country. Agriculture ACCOUNTS for approximately 33 PER cent of India’s GDP and employs nearly 62 per cent of the population.

102.

Which phase is often referred to as the Green Revolution?(a) The Mid-1900s(b) The Mid-1980s(c) The early 2000s(d) The Mid-1960sThis question was addressed to me in homework.My question is from Food Production Strategies topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right choice is (d) The Mid-1960s

The EXPLANATION: The phase of the mid-1960s is often referred to as the green revolution in India. The development of SEVERAL high yielding varieties of WHEAT and RICE in the mid-1960s, as a result of various plant breeding techniques, led to a dramatic increase in food production in our country.

103.

Who is the father of the Green revolution in India?(a) M.S. Swaminathan(b) Charles Darwin(c) Herbert Boyer(d) Stanley CohenThe question was posed to me in an internship interview.Origin of the question is Food Production Strategies topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (a) M.S. Swaminathan

The best explanation: M.S. Swaminathan has been regarded as the father of GREEN REVOLUTION in India. Green Revolution not only MET the national requirements in food production of our country but also HELPED us to EXPLORE it.

104.

Presence of heart-shaped parasites inside erythrocytes is the diagnostic feature of babesiosis.(a) True(b) FalseI got this question at a job interview.This interesting question is from Parasitic and Protozoan Diseases in Animals in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer» CORRECT CHOICE is (b) False

The EXPLANATION: Presence of pear-shaped parasites inside erythrocytes is the diagnostic feature of this disease. Eradication of ticks through external insecticide treatment and sanitation are useful in preventing the disease. Fresh tick attack is further PREVENTED by treating grazing ground with the insecticide.
105.

Which of the following is not a symptom of Babesiosis?(a) Anaemia(b) Paralysis(c) Jaundice(d) ConstipationThe question was posed to me during an internship interview.My query is from Parasitic and Protozoan Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right answer is (b) Paralysis

Explanation: Symptoms of Babesiosis INCLUDE high but irregular FEVER, enlargement of lymph nodes, haemolytic anaemia, jaundice, constipation followed by DIARRHOEA. INFECTED ANIMALS are treated with an injection of trypan blue, acaprin or berenil.

106.

Tick fever is also known as _________(a) Fascioliasis(b) Ascariasis(c) Babesiosis(d) CoccidiosisThe question was asked in exam.My enquiry is from Parasitic and Protozoan Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct option is (c) Babesiosis

Easy explanation: Tick FEVER is also known as Babesiosis. Ticks are blood-sucking ectoparasites of CATTLE and other domesticated animals. The infectious agent or PATHOGEN is protozoan Babesia, SEVERAL species of which cause the disease but most COMMON in Babesia bigemina.

107.

Which of the following is not a physiological change that occurs in the body of animals suffering from Coccidiosis?(a) Erosion of intestinal mucosa(b) Intestinal haemorrhage(c) Dysentery(d) Brain strokeThe question was posed to me during an interview for a job.Question is from Parasitic and Protozoan Diseases in Animals in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct CHOICE is (d) Brain stroke

For explanation: In DOMESTICATED animals, coccidiosis is associated with protozoans Eimeria, Isospora and a few others. It causes erosions of the INTESTINAL mucosa, intestinal haemorrhage, diarrhoea and sometimes fatal dysentery. Coccidiosis is HIGHLY infective in YOUNG poultry birds.

108.

Coccidiosis is an infection of _______(a) Brain(b) Intestine(c) Eyes(d) TongueThe question was asked in a job interview.I'm obligated to ask this question of Parasitic and Protozoan Diseases in Animals topic in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct choice is (B) Intestine

Best explanation: Coccidiosis is an INTESTINAL infection of animals caused by a group of PROTOZOA called coccidia. The disease occasionally occurs in human beings where it is due to PROTOZOAN Isospora hominis or Isospora belli. The infection is asymptomatic, but may sometimes cause watery MUCUS containing diarrhoea.

109.

How does the fresh infection of Ascaris occur in various animals?(a) Contaminated feed(b) Contaminated clothes(c) Contact with infected animals(d) Eating healthy foodThe question was asked during an internship interview.Origin of the question is Parasitic and Protozoan Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct answer is (a) Contaminated feed

The explanation is: FRESH infection of Ascaris occurs due to feed or grass or water contaminated with the faecal MATTER of INFECTED animals. The infected animal can be treated by giving drugs like piperax, piperazine adipate, wormex, alcopar, chenopodium OIL, ETC.

110.

Which of the following is not caused by the movement of larvae through the body of animal?(a) Diarrhoea(b) Anaemia(c) Typhoid(d) ConstipationThe question was posed to me at a job interview.My doubt stems from Parasitic and Protozoan Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct ANSWER is (c) Typhoid

The explanation is: During the movement of the larvae through the BODY of the animal, Ascaris damages various body parts and causes permanent injury. In the intestine, adults rob the animal of nutrition causing constipation, diarrhoea, WEAKNESS and anaemia. They MAY at times BLOCK the intestine which causes the death of the animal.

111.

Where do the embryonated eggs of Ascaris hatch out in the animal?(a) Heart(b) Brain(c) Kidney(d) IntestineThe question was asked in semester exam.The origin of the question is Parasitic and Protozoan Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (d) Intestine

The explanation: The embryonated eggs of Ascaris HATCH out in the intestine. The LARVAE pass into hepatic portal VEIN, spleen, liver, heart, pulmonary arteries, lungs, TRACHEA, larynx, pharynx, oesophagus and intestine again where they develop into adult MALE and female worms.

112.

Which of the following is a common roundworm which infects domestic animals?(a) Rhabditis(b) Ascaris(c) Enterobius(d) AncylostomaThe question was posed to me by my school teacher while I was bunking the class.The question is from Parasitic and Protozoan Diseases in Animals topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The CORRECT CHOICE is (b) Ascaris

The explanation: Ascaris is a common roundworm which infects both domestic ANIMALS as WELL as human beings. The DISEASE caused by it is ascariasis. The source of infection is contaminated food.

113.

Ectoparasites live inside the body of the animal.(a) True(b) FalseThis question was posed to me in quiz.The doubt is from Parasitic and Protozoan Diseases in Animals topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct ANSWER is (b) False

The best I can explain: Parasitic ANIMALS can live inside as well as outside of the body of the host. Ectoparasites live on the SKIN feeding over dead skin and animal fluids. For EXAMPLE, ticks.

114.

Which of the following is not caused by liver fluke in animals?(a) Anaemia(b) Diarrhoea(c) Eosinophilia(d) AIDSThe question was posed to me in semester exam.My question comes from Parasitic and Protozoan Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct option is (d) AIDS

The explanation is: Liver fluke causes inflammation of bile ducts, ANAEMIA, diarrhoea, eosinophilia and liver ROT which may lead to the DEATH of the animal. Anthelminthic drugs like EMETINE hydrochloride and hexachloroethane are useful in TREATMENT of the disease.

115.

Where does liver fluke lives in sheep?(a) Brain(b) Kidney(c) Bile ducts(d) PancreasThe question was posed to me during an online interview.My doubt is from Parasitic and Protozoan Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct option is (c) Bile ducts

For explanation I would say: Liver fluke causes liver rot or fascioliasis in SHEEP. The parasite lives in bile ducts. Liver fluke also PASSES a part of its life cycle in SNAILS. Eradication of snails can help in the CONTROL of the disease.

116.

Which of the following is not an endoparasite?(a) Ticks(b) Tapeworm(c) Liver fluke(d) RoundwormI have been asked this question by my college director while I was bunking the class.My enquiry is from Parasitic and Protozoan Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer» RIGHT option is (a) Ticks

Best EXPLANATION: Endoparasites live inside the body of ANIMALS. They also generally feed over animal fluids and semi-digested FOOD in the alimentary canal. For example, Tapeworm, Liver FLUKE and Roundworm.
117.

Which of the following is not a bacterium which causes disease in a poultry farm?(a) Tapeworm(b) Haemophilus gallinarium(c) Salmonella gallinarium(d) Pasteurella avicidaI have been asked this question in homework.My question is from Bacterial Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct answer is (a) Tapeworm

To explain: MANY species of tapeworm CAUSES Taeniasis. Salmonella gallinarium causes Fowl typhoid or SALMONELLOSIS. Haemophilus gallinarium causes Fowl CORYZA. Pasteurella avicida causes Fowl cholera.

118.

Which of the following microorganism causes a bacterial disease in a poultry farm?(a) Ascaridia galli(b) Mycobacterium avium(c) Eimeria(d) ParamyxovirusThis question was posed to me in an online quiz.This is a very interesting question from Bacterial Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct option is (b) Mycobacterium avium

To ELABORATE: Mycobacterium avium is a bacterium which causes Tuberculosis. Ascaridia galli, Eimeria and Paramyxovirus CAUSE Fowl Ascariasis, Coccidiosis and New castle disease RESPECTIVELY.

119.

In anthrax, when discharge from natural opening becomes black, shining or foamy, death of the animal is likely to occur within 2-3 days.(a) True(b) FalseThis question was posed to me in an international level competition.My enquiry is from Bacterial Diseases in Animals topic in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct choice is (a) True

The explanation: In anthrax, when DISCHARGE from natural OPENING becomes black, SHINING or foamy, death of the animal is likely to occur within 2-3 days. Death occurs mostly due to the CONSUMPTION of blood carried oxygen by the bacterium. The bacterium can be observed under MICROSCOPE from blood samples of diseased animals.

120.

Which of the following is not a preventive measure for Anthrax?(a) Vaccination(b) Antiserum injection(c) Dirty pastures(d) Carcasses should be effectively disposedI had been asked this question in final exam.My question is based upon Bacterial Diseases in Animals topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer» RIGHT option is (c) Dirty pastures

Explanation: Preventive measures include vaccination and antiserum injection to all, if the disease is noticed in any of the animals of the pasture. Carcasses should be effectively DISPOSED off to PREVENT dispersal of anthrax spores.
121.

Which of the following is not a symptom of Anthrax?(a) Rapid Breathing(b) Low body temperature(c) Discharge from nostrils(d) Rapid heartbeatThe question was asked in a national level competition.My doubt is from Bacterial Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct answer is (b) Low body TEMPERATURE

To elaborate: Symptoms of Anthrax include high fever, rapid breathing, CONGESTION, painful swellings in different body PARTS, blood mixed FOAMY DISCHARGE from nostrils and later from mouth and anus. The body temperature also becomes high. Rapid heartbeats and breathing are also observed.

122.

Anthrax does not spread to humans while handling infected animals.(a) False(b) TrueI had been asked this question in an interview for job.Enquiry is from Bacterial Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct choice is (a) False

Best explanation: Anthrax SPREADS through CONTACT with infected animals, contaminated FEED, contaminated water and pasture. It also infects human BEINGS HANDLING infected animals and their products.

123.

Which of the following is a highly contagious bacterial disease of cattle?(a) Mastitis(b) Anthrax(c) Pneumonia(d) TyphoidI had been asked this question in final exam.My question comes from Bacterial Diseases in Animals in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct choice is (b) Anthrax

The EXPLANATION: Anthrax is a highly contagious bacterial disease of cattle, BUFFALO, horse, SHEEP, goat, etc. which is CAUSED by rod-shaped bacterium called Bacillus anthracis.

124.

Mastitis refers to _________(a) Inflammation of nephrons(b) Inflammation of neurons(c) Inflammation of Udders(d) Inflammation of mast cellsThis question was addressed to me in an interview for job.The query is from Bacterial Diseases in Animals in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer» CORRECT choice is (c) Inflammation of Udders

Explanation: Mastitis is an inflammation of udders that often OCCURS in dry cows and pre-calving heifers DUE to infection of bacterium CORYNEBACTERIUM pyogenes. The antibiotic treatment provides cure.
125.

Which of the following is not a characteristic of pneumonia in animals?(a) Inflammation of lungs(b) Accumulation of mucus in alveoli(c) Fever(d) Easy breathingThis question was posed to me in homework.Asked question is from Bacterial Diseases in Animals topic in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer» RIGHT ANSWER is (d) EASY breathing

Easy explanation: Pneumonia is a disease of lungs which is characterised by inflammation of lungs and accumulation of mucus in alveoli and bronchioles that MAKES breathing quite difficult. FEVER, chill and rapid shallow breathing are also observed.
126.

Which of the following is not a symptom of Rinderpest?(a) Dysentery(b) Fever(c) Congestion(d) Blue urineThe question was posed to me at a job interview.Enquiry is from Viral Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right choice is (d) Blue urine

The explanation is: Symptoms of RINDERPEST include fever, DYSENTERY or constipation with blood laced hard faeces, ocular and nasal discharges, ANOREXIA, leukopenia followed by diarrhoea or loose motions with an OFFENSIVE odour.

127.

Which of the following organism causes pneumonia?(a) Bacteria(b) Protozoan(c) Fungi(d) Slime mouldI have been asked this question by my school principal while I was bunking the class.The above asked question is from Bacterial Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer» CORRECT answer is (a) Bacteria

For explanation: Pneumonia is CAUSED by bacteria Streptococcus pneumoniae or Diplococcus pneumoniae. KLEBSIELLA pneumoniae and few other bacteria also cause pneumonia. Antibiotic treatment is HELPFUL.
128.

Which of the following is incorrect about Bird Flu?(a) Caused by H5N1(b) Bacterial disease(c) Also known as Avian influenza(d) Attacks poultry birdsThe question was posed to me in an interview.My question is from Viral Diseases in Animals topic in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right answer is (B) Bacterial disease

To elaborate: Bird Flu which is also known as Avian INFLUENZA is a VIRAL infection caused by H5N1. It OFTEN attacks poultry birds and from them to humans. Disease reservoir is migratory birds. The pathogen can be airborne so poultry workers must be extra CAREFUL.

129.

Which of the following is not a viral disease?(a) Salmonellosis(b) Ranikhet disease(c) Laryngotracheitis(d) Fowl PoxThe question was asked in homework.I want to ask this question from Viral Diseases in Animals in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct answer is (a) SALMONELLOSIS

Easy explanation: Salmonellosis is a BACTERIAL disease caused by Salmonella GALLINARIUM. Ranikhet disease, Laryngotracheitis and Fowl Pox are caused by a paramyxovirus, herpes virus and Avian pox virus RESPECTIVELY.

130.

Prophylaxis was initiated in India in 1954 and has effectively controlled rinderpest.(a) True(b) FalseI have been asked this question during a job interview.I'm obligated to ask this question of Viral Diseases in Animals in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The CORRECT option is (a) True

Explanation: Prophylaxis includes vaccination which was initiated in India in 1954 and has EFFECTIVELY controlled rinderpest. Disinfection of animal houses, isolation of sick ANIMALS and DESTRUCTION of CARCASSES should be carried out.

131.

Which of the following is not a method by which Rinderpest is spread amongst cattle?(a) Contact(b) Contaminated feed(c) Flies(d) Clean waterThe question was posed to me by my school principal while I was bunking the class.My enquiry is from Viral Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct answer is (d) Clean water

The explanation: Rinderpest spreads through contact, contaminated FEED and water, workers and their clothes, equipment and FLIES. The virus occurs in all body fluids and secretions of INFECTED animals even before the APPEARANCE of CLINICAL symptoms.

132.

Which of the following is the highly contagious viral disease of cattle?(a) Foot and Mouth disease(b) Rinderpest(c) Cowpox(d) RanikhetI have been asked this question in examination.My question is based upon Viral Diseases in Animals topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right answer is (b) Rinderpest

For EXPLANATION: Rinderpest is a highly contagious DISEASE of cattle, buffaloes, sheep, GOAT, etc. which is caused by Morbillivirus having ssRNA. The sick animal can be treated with an injection of sulfamethazine SODIUM.

133.

Which of the following diseases can spread to humans while milking?(a) Foot and Mouth disease(b) Small Pox(c) Ranikhet(d) CowpoxThis question was addressed to me in final exam.My enquiry is from Viral Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer» CORRECT choice is (d) Cowpox

For explanation: Cowpox spreads to humans accidentally while milking infected ANIMALS. Lesions appear on fingers, RUPTURE and spread to hands but heal without scarring. Local oedema with and without mild fever may also occur.
134.

Cowpox is caused by cowpox virus.(a) True(b) FalseThis question was addressed to me in an internship interview.Asked question is from Viral Diseases in Animals topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct option is (a) True

To explain I would say: Cowpox is a mild self-limiting ERUPTIVE skin disease of cows caused by cowpox virus. The eruption is CONFINED to udder and teats. INOCULUM from cowpox lesions was used by JENNER in 1796 as a vaccine against smallpox.

135.

Which of the following is not a characteristic symptom of Foot and Mouth disease?(a) An eruption of vesicles over the lips(b) Fever(c) Increase in appetite(d) LamenessI have been asked this question in an interview for job.I want to ask this question from Viral Diseases in Animals in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct option is (c) Increase in appetite

The best I can explain: Foot and Mouth DISEASE is characterised by the eruption of vesicles over the lips, inside buccal cavity and pharynx, over legs, feet, udder and even TEATS. The animal RUNS a fever. There is loss of appetite but DRIBBLING of saliva is PRESENT. Lameness occurs.

136.

Which of the following virus causes Foot and Mouth disease?(a) Coxsackievirus(b) Cowpox virus(c) Retrovirus(d) ReovirusThis question was posed to me in an interview for job.My question comes from Viral Diseases in Animals in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The CORRECT answer is (a) Coxsackievirus

To explain: Foot and MOUTH disease is caused by Coxsackievirus. It affects cattle, SHEEP, goats, pigs and other ruminants. Common strains FOUND in India are A, O and C. The disease is EXTREMELY contagious.

137.

Which of the following steps should not be done for the prevention of infectious diseases?(a) Proper disposal of dead infected animals(b) Disinfection of the animal house(c) Freedom of infected animals(d) Vaccination of animals against major diseasesThis question was posed to me in unit test.My question is from Viral Diseases in Animals topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer» CORRECT option is (c) Freedom of infected animals

To elaborate: For PREVENTING the spread of INFECTIOUS diseases, care should be taken about the isolation of infected animals, DISINFECTION of animal house, Vaccination of animals against all major diseases, Proper disposal of dead infected animals and all contaminated articles.
138.

Which of the following is not a reason for animal disease?(a) Genetic diseases(b) Deficiency diseases(c) Environmental discomforts(d) Hygiene and cleanlinessI had been asked this question during an interview for a job.This interesting question is from Viral Diseases in Animals in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (d) HYGIENE and cleanliness

The explanation: Animal disease is a state of discomfort associated with disturbed or abnormal functioning of animal body due to genetic diseases, DEFECTIVE nutrition or DEFICIENCY diseases, unsuitable DISCOMFORTS and attack of PATHOGENS.

139.

Pebrine disease in silkworms is caused by a fungus.(a) True(b) FalseThis question was posed to me in exam.Question is from Food Production Strategies topic in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer» RIGHT option is (b) False

To elaborate: Pebrine DISEASE of silkworms is caused by a PROTOZOAN Nosema bombycis. Fungus Spicaria and Botrytis cause Muscardine. Flacherie disease of silkworms is caused by a virus.
140.

Which of the following state is not a mulberry silk manufacturer in India?(a) Assam(b) Karnataka(c) Andhra Pradesh(d) Tamil NaduThis question was posed to me during an interview.This interesting question is from Food Production Strategies topic in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer» RIGHT option is (a) Assam

To explain: In India, 97% of the raw mulberry silk is produced in Karnataka, Andhra Pradesh, Jammu and Kashmir, Tamil Nadu and West BENGAL. The non-mulberry silk industry is found in Assam, BIHAR, Bengal, Odisha and Madhya Pradesh. There are three main types of silk- Tassar silk, MUGA silk and Eri silk.
141.

Raw silk is prepared by degumming.(a) True(b) FalseThe question was asked during an online interview.My query is from Food Production Strategies in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct answer is (b) False

The best explanation: Silk containing sericin is called as raw silk. Sericin is a gummy substance which is USUALLY RETAINED as it gives protection to silk during processing. So in order to obtain Pure silk, sericin is chemically removed. This makes the silk soft and also REDUCES its weight.

142.

Cocoon is formed by how many pairs of glands?(a) Two(b) Three(c) Four(d) OneI got this question by my school teacher while I was bunking the class.I'm obligated to ask this question of Food Production Strategies topic in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right choice is (a) TWO

Best explanation: The COCOON is formed by two pairs of glands. One PAIR of glands form a protein FIBROIN which forms twin filaments and other pair of glands form a protein SERICIN which is responsible for joining of twin filaments.

143.

How many stages are there in the life cycle of a silkworm?(a) 3(b) 4(c) 5(d) 6The question was posed to me in an internship interview.This interesting question is from Food Production Strategies topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (b) 4

Easiest explanation: The life HISTORY of silk moth passes through four stages-egg, LARVA, PUPA and adult. About 50% of the cocoon are kept in boiling water to kill pupa and then thread is reeled off. REST 50% are kept as such so that they become adult and the life cycle starts once again.

144.

Which of the following is not a characteristic feature of Eri silk?(a) Also known as Arundi silk(b) Produced in Bengal, Bihar and Assam(c) Cocoons are soft and white(d) Larva feeds on oak leavesThe question was asked by my school principal while I was bunking the class.My question is based upon Food Production Strategies topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct OPTION is (d) Larva FEEDS on oak leaves

To EXPLAIN: Eri or ARUNDI silk is produced by the larva of Philosamia ricini and is made in Bengal, Bihar and Assam. The eri silkworms feed on castor leaves and are REARED indoors. The cocoons are soft and white or yellowish.

145.

Which of the following silk is mainly produced in Assam?(a) Arundi silk(b) Natural silk(c) Muga silk(d) Tassar silkThe question was posed to me by my school teacher while I was bunking the class.Query is from Food Production Strategies in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right option is (c) Muga silk

For explanation I WOULD SAY: Muga silk is PRODUCED by the larva of Antheraea assamensis in Assam. It is golden yellow in colour and SUPERIOR to tassar silk in gloss and other qualities. It is an excellent material for embroidery.

146.

Which of the following is not considered as a silk city of India?(a) Jaipur(b) Kanchipuram(c) Bhagalpur(d) PochampallyI have been asked this question in semester exam.Query is from Food Production Strategies in portion Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct ANSWER is (c) Bhagalpur

To elaborate: INDIA’s silk industry is the WORLD’s second-largest contributor to 18% of the total raw silk production. The cities contributing for such growth of silk are Kanchipuram in TAMIL NADU, Bhagalpur in Bihar, Pochampally in Telangana. They are called silk cities in their respective states.

147.

Which of the following is not the characteristic feature of Tassar silk?(a) Also known as Kosa silk(b) Obtained from Bombyx mori(c) A native of India and China(d) Larvae of the silkworm feed on oakThis question was addressed to me during an internship interview.I'd like to ask this question from Food Production Strategies in division Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct answer is (b) Obtained from Bombyx mori

To elaborate: Tassar silk is ALSO known as Kosa silk. It is obtained from the oak-feeding LARVAE of the silk moth-Antheraea mylitta. It is a native of INDIA and China. Tassar cocoons are ATTACHED by a peduncle to twigs of Sal TREES.

148.

Which of the following varieties of silk is not produced in India?(a) Muga Silk(b) Mulberry Silk(c) Tassar Silk(d) American SilkThe question was posed to me in an interview for job.This intriguing question originated from Food Production Strategies topic in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Right answer is (d) American Silk

The BEST I can explain: FOUR varieties of silk produced in India are natural silk, MULBERRY, tassar, eri and MUGA. India RANKS third among the mulberry silk-producing countries of the world.

149.

What is sericulture?(a) Rearing of fishes(b) Rearing of silkworm(c) Rearing of birds(d) Rearing of cockroachThis question was posed to me in an online quiz.My question is taken from Food Production Strategies in chapter Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

Correct choice is (b) Rearing of silkworm

The explanation: SERICULTURE is the breeding and management of INSECTS for the production of silk. Silk is of two MAIN types-mulberry silk or cultivated silk and non-mulberry silk or WILD silk.

150.

Which of the following is a surface feeder?(a) Catla catla(b) Labeo rohita(c) Magur(d) Flying fishThe question was posed to me during an interview for a job.My doubt is from Food Production Strategies in section Strategies for Enhancement in Food Production of Biology – Class 12

Answer»

The correct choice is (a) Catla catla

To explain: On the basis of food compatibility, more than one species of fish is REARED in the same pond. This TECHNIQUE is known as COMPOSITE farming. For example, Catla catla is a SURFACE feeder, Labeo rohita is a column feeder and Magur is a bottom feeder, THEREFORE they can be reared in the same pond.