161: 'RNA interference (RNAi)' technology has gained popularity in the last few years. Why?
1. It is used in developing gene silencing therapies.
2. It can be used in developing therapies for the treatment of cancer.
3. It can be used to develop hormone replacement therapies.
3. It can be used to produce crop plants that are resistant to viral pathogens.
Select the correct answer using the code given below.
(a) 1, 2 and 4
(b) 2 and 3
(c) 1 and 3
(d) 1 and 4 only
162: In which one among the following is the speed of sound maximum ?
(a) Air at 100 degree celcius
(b) Air at 0 degree celcius
(c) Wood
(d) Water
163: With reference to cultural history of India, consider the following statements :
1. Most of the Tyagaraja Kritis are devotional songs in praise of Lord Krishna.
2. Tyagaraja created several new ragas.
3. Annamacharya and Tyagaraja are contemporaries.
4. Annamacharya kirtanas are devotional songs in praise of Lord Venkateshwara.
Which of the statements given above are correct?
(a) 1 and 3 only
(b) 2 and 4 only
(c) 1, 2 and 3
(d) 2, 3 and 4
164: Which of the following introduced a measure of provincial autonomy?
(a) Minto-Morley reforms
(b) Montague-Chelmsford reforms
(c) Cripps Mission
(d) Government of India Act, 1935
165: Identify the correct order of the processes of soil-erosion from the following:
(a) Splash erosion, Sheet erosion, Rill erosion, Gully erosion
(b) Sheet erosion, Splash erosion, Gully erosion, Rill erosion
(c) Rill erosion, Gully erosion, Sheet erosion, Splash erosion
(d) Gully erosion, Rill erosion, Sheet erosion, Splash erosion