UPSC PRELIMINARY MOCK TEST 232

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UPSC PRELIMINARY MOCK TEST 232

Question 86 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In India, BT Cotton was used on a wide scale from 2002. Over a decade now, the positives and negatives are properly documented. With reference to this identify which of the following are the major drawbacks/negatives of BT Cotton?
A
Bollworm pests that the BT toxin is designed to fight, is becoming BT resistant.
B
BT toxin is destroying microflora
C
BT plants are not able to produce BT toxin throughout their lifespan.
D
All of the above
Question 86 Explanation: 
BT Cotton Gene CRY1ac has been taken from soil bacterium Bacillus Thuringiensis, which has been inserted into cotton. This gene has been identified to produce a toxin that is potent to many pests. Once this gene is inserted into cotton plants, then we get a cotton plant that fights pests on its own. This reduces the use of Pesticides.

In India, BT Cotton was used on a wide scale from 2002. Over a decade now, the positives and negatives are properly documented.

Negatives

  • Bollworm pests that the BT toxin is designed to fight, is becoming BT resistant. This is a major issue, since this scenario was not anticipated and there is virtually no solution as of now to this issue.
  • BT toxin is destroying microflora.
  • BT plants are not able to produce BT toxin throughout their lifespan
Question 87 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
From the ecological point of view, which one of the following assumes importance in being a good link between the Eastern Ghats and the Western Ghats?
A
Sathyamangalam Tiger Reserve
B
Nallamala Forest
C
Nagarhole National Park
D
Seshachalam Biosphere Reserve
Question 87 Explanation: 
Sathyamangalam Tiger Reserve, Tamil Nadu
Question 88 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following river doesn't flow northwards?
A
Chambal River
B
Betwa River
C
Kosi River
D
Son River
Question 88 Explanation: 
Chambal, Betwa, Ken and Son are the northward flowing rivers. Kosi originates in Tibet and flows southwards to merge in Ganga.
Question 89 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following situations will bring about the collapse of the Council of Ministers of a State?
1. Resignation by Chief Minister
2. Death of Chief Minister
A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Question 89 Explanation: 
Both the situations
Question 90 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
'Wolbachia' recently seen in news is
A
Japan's new satellite launch to remove space debris
B
New vaccine to treat chikungunya
C
An invasive alien species
D
A tiny bacterium
Question 90 Explanation: 
A tiny bacterium. Wolbachia is a genus of gram-negative bacteria that infects arthropod species, including a high proportion of insects, and also some nematodes.
There are 90 questions to complete.