#1. H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases? [2015]

AIDS

Bird flu

Dengue

Swine flu

#2. Consider the following : [2014] 1. Bats 2. Bears 3. Rodents The phenomenon of hibernation can be observed in which of the above kinds of animals?

1 and 2 only

2 only

1, 2 and 3

Hibernation cannot be observed in any of the above

#3. Consider the following pairs : [2014] 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?

1 and 2 only

3 only

1, 2 and 3

None

#4. Consider the following diseases : [2014] 1 . Diphtheria 2. Chickenpox 3. Smallpox Which of the above diseases has/have been eradicated in India?

1 and 2 only

3 only

1, 2 and 3

None

#5. Among the following organisms, which one does not belong to the class of other three? [2014]

Crab

Mite

Scorpion

Spider

#6. Which of the following statements is/are correct? [2013] 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.

1 only

2 and 3 only

1 and 3 only

1, 2 and 3

#7. Consider the following animals: [2013 ] 1. Sea cow 2. Sea horse 3. Sea lion Which of the above is/are mammal/mammals?

1 only

1 and 3 only

2 and 3 only

1, 2 and 3

#8. Consider the following minerals: [2013 ] 1. Calcium 2. Iron 3. Sodium Which of the minerals given above is/are required by human body for the contraction of muscles?

1 only

2 and 3 only

1 and 3 only

1, 2 and 3

#9. Which of the following diseases can be transmitted from one person to another through tattooing? [2013 ] 1. Chikungunya 2. Hepatitis B 3. HIV-AIDS Select the correct answer using the codes given below.

1 only

2 and 3 only

1 and 3 only

1, 2 and 3

#10. Which of the following adds / add nitrogen to the soil? [2013 ] 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer using the codes given below.

1 only

2 and 3 only

1 and 3 only

1, 2 and 3

#11. Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by (2013)

bacteria

protozoa

moulds

viruses

#12. Consider the following kinds of organisms : [2012 ] 1. Bat 2. Bee 3. Bird Which of the above is/are pollinating agent/agents?

1 and 2 only

2 only

1 and 3 only

1, 2 and 3

#13. Which one of the following sets of elements was primarily responsible for the origin of life on the Earth? (2012)

Hydrogen, Oxygen, Sodium

Carbon, Hydrogen, Nitrogen

Oxygen, Calcium, Phosphorus

Carbon, Hydrogen, Potassium

#14. 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 ? (2012)

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

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

They neutralize the free radicals produced in the body during metabolism

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

#15. 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 ? (2011)

O positive

A positive

B positive

Cannot be determined on the basis of the given data

#16. A company marketing food products advertises that its items do not contain trans-fats. What does this campaign signify to the customers ? [2011 ] 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?

1 only

2 and 3 only

1 and 3 only

1,2 and 3

#17. At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us? [2011 ] 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 ?

1 and 2 only

2 only

1 and 3 only

1, 2 and 3

#18. Aspartame is an artificial sweetener sold in the market. It consist 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? (2011)

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.

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

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

Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.

+917649911100

UPSC question paper – 2011-2015 – Biology

Results

#1. H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases? [2015]

#2. Consider the following : [2014] 1. Bats 2. Bears 3. Rodents The phenomenon of hibernation can be observed in which of the above kinds of animals?

#3. Consider the following pairs : [2014] 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?

#4. Consider the following diseases : [2014] 1 . Diphtheria 2. Chickenpox 3. Smallpox Which of the above diseases has/have been eradicated in India?

#5. Among the following organisms, which one does not belong to the class of other three? [2014]

#7. Consider the following animals: [2013 ] 1. Sea cow 2. Sea horse 3. Sea lion Which of the above is/are mammal/mammals?

#8. Consider the following minerals: [2013 ] 1. Calcium 2. Iron 3. Sodium Which of the minerals given above is/are required by human body for the contraction of muscles?

#9. Which of the following diseases can be transmitted from one person to another through tattooing? [2013 ] 1. Chikungunya 2. Hepatitis B 3. HIV-AIDS Select the correct answer using the codes given below.

#10. Which of the following adds / add nitrogen to the soil? [2013 ] 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer using the codes given below.

#11. Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by (2013)

#12. Consider the following kinds of organisms : [2012 ] 1. Bat 2. Bee 3. Bird Which of the above is/are pollinating agent/agents?

#13. Which one of the following sets of elements was primarily responsible for the origin of life on the Earth? (2012)

#14. 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 ? (2012)

#15. 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 ? (2011)

#18. Aspartame is an artificial sweetener sold in the market. It consist 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? (2011)

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