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7.  Which of the following statements are correct regarding the general difference between plant and animal cells ?
1. Plant cells have cellulose cell walls whilst animal cells do not
2. Plant cells do not have plasma membrane unlike animal cells which do.
3. mature plant cells has one large vacuole whilst animal cell has many small vacuoles
Select the correct answer using the code given below
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2, and 3 

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4.  Consider the following statements : 
1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent.
2. A persons genome can be edited before birth at the early embryonic stage.
3. Human induced pluripotent stemcells can be injected into the embryo of a pig.
Which of the statements given above is/are correct ?
a) 1 only
b) 2 and 3 only
c) 2 only
d) 1, 2 and 3 

15. With reference to the history of India, "Ulgulan" or the great Tumult is the description of which of the following events
a) The Revolt of 1857
b) The Mappila Rebellion of 1921
c) The Indigo Revolt of 1859 - 60
d) Birsa Munda Revolt of 1899 - 1900

Answer Key : Educasium Land reforms presentation Slide 60

8.  Which of the following are the reasons/factors for exposure to benzene pollution ?
1. Automobile exhaust
2. Tobacco Smoke
3. Wood burning
4. Using varnished wooden furniture
5. Using products made of polyurethane
Select the correct answer using the code given below
a) 1, 2 and 3 only
b) 2 and 4 only
c) 1, 3 and 4 only
d) 1, 2 ,3 , 4 and 5

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10. If you withdraw Rs: 100000 in cash from your Demand Deposit Account at your bank, the immediate effect on aggregate money supply in the economy will be
a) to reduce it by Rs 100000
b) to increase it by Rs 100000
c) to increase it by more than Rs 100000
d) to leave it unchanged

16.  With reference to the Scholars of ancient India, Consider the following statements : 
1. Panini is associated with Pushyamitra Sunga
2. Amarasimha is associated with Harshavardhana
3. Kalidasa is associated with Chandragupta II
Select the correct answer using the code given below
a) 1 and 2 only
b) 2 and 3 only
c) 3 only
d) 1 2 and 3

Answer Key: Amarsimha and Kalidasa are part of Navratna of Chandragupta II. So remove 2 and get the answer. Educasium Gupta presentation Slide 19

2. Consider the following activities
1. Spraying pesticides on a crops field
2. Inspecting the craters of active volcanoes
3. Collecting breath samples from spouting whales for DNA analysis.
At the present level of technology, which of the above activities can be succesfully caried out by using drones
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3 

13.  Indigo cultivation in India declined by the beginning of the 20th century because of 
a) Peasant resistance to the oppressive conduct of planters
b) its unprofitability in the world market because of new inventions
c) National leaders opposition to the cultivation of indigo
d) Government control over the planters

6.  In India, the term "Public Key Infrastructure" is used in the context of 
a) Digital Security Infrastructure
b) Food Security Infrastructure
c) Health care and education Infrastructure
d) Telecommunication and transportation infrastructure

9.  If another global financial crisis happens in the near future, which of the following actions/polices are most likely to give some immunity to India ?
1. Not depending on short term foreign borrowings
2. Opening up to more foreign banks
3. Maintaining full capital account convertibility
Select the correct answer using the code given below
a) 1 only
b) 1 and 2 only
c) 3 only
d) 1, 2, and 3 

11.  With reference to the cultural history of India, which one of the following is the correct description of the term 'Paramitas"
a) the earliest Dharma Shastra texts written in aphoristic style
b) Philosophical schools that did not accept the authority of Vedas
c) Perfectionism whose attainment led to the Bodhisattva path
d) Powerful merchant guilds of early medieval South India

Answer Key : C : Mock Test 2 (2020) Question 27
    Buddhism presentation slide 54

UPSC Civil Services Preliminary Exam - 2020 : Answer Key

3. ​The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilomteres long, with lasers shining between the craft". The experiment in question refers to 
a) Voyager 2
b) new Horzons
c) LISA Pathfinder
d) Evolved LISA

1. With reference to carbon nanotubes, consider the following statements :
1. They can be used as carriers of drugs and antigens in the human body.
2. They can be made into artificial blood capillaries for an injured part of human body.
3. They can be used in biochemical sensors
4. Carbon nanotubes are biodegradables
Which of the statements given above are correct ?
a) 1 and 2 only
b) 2, 3 and 4 only
c) 1, 3 and 4 only
d) 1, 2 ,3 and 4​​

 GS Paper 1 : Answer Key for Series B

19. With reference to Visible Light Communication (VLC) technology, which of the following statements are correct ?
1. VLC uses electromagnetic spectrum wavelengths 375 to 780 nm
2. VLC is known as long range optical wireless communication
3. VLC can transmit large amounts of data faster than blue tooth
4. VLC has no electromagnetic intereference
Select the answer from the below codes
a) 1, 2 and 3 only
b) 1, 2 and 4 only
c) 1, 3 and 4 only
d) 2, 3 and 4 only

5.  What is the importance of using Pneumococcal Conjugate Vaccines in India ?
1. These vaccines are effective against pneumonia as well as meningitis and sepsis.
2. Dependence on antibiotics that are not effective against drug resistant bacteria can be reduced
3. These vaccines have no side effects and cause no allergic reactions.
Select the correct answer using the code given below
a) 1 only
b) 1 and 2 only
c) 3 only
d) 1, 2 and 3 

20.  With reference to "Blockchain Technology" consider the following
1. It is a public ledger that everyone can inspect, but which no single user controls.
2. The structure and design of block chain is such that all the data in it are about cryptocurrency only
3. Applications that depend on basic features of block chain can be developed without anybodys permission
Select the answer from the below codes
a) 1 only
b) 1 and 2 only
c) 2 only
d) 1 and 3 only

17.  In the context of recent advances in Human reproductive technology, "Pronuclear Transfer" is used for 
a) fertilization of egg in vitro by the donor sperm
b) genetic modification of sperm producing cells
c) development of stem cells into functional embryos
d) prevention of mitochondrial diseases in offspring

 14.  Wellesley established the Fort William college at calcutta because
a) he was asked by the Board of Directors at London to do so
b) he wanted to revive interest in oriental learning in India
c) he wanted to provide William carey and his associated with employment
d) he wanted to train British Civilians for administrative purpose in India

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12. In the context of Indian history, the Rakhmabai case of 1884 revolved around
1. Womans right to gain education
2. age of consent
3. restitution of conjugal rights
Select the correct answer using the code given below
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

18. With the present state of development in Artificial Intelligence can effectively do which of the following
1. Bring down electricity consumption in industrial units
2. Create meaningful short stories and songs
3. Disease diagnosis
4. Text to speech conversion
5. Wireless transmission of electrical energy
Select the answer from the below codes
a) 1, 2, 3 and 5 only
b) 1, 3 and 4 only
c) 2, 4 and 5 only
d) 1, 2 ,3 , 4 and 5

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