316: With reference to the latest developments in stem cell research, consider the following statements:
1. The only source of human stem cells are the embryos at blastocyst stage
2. The stem cells can be derived a without causing destruction to blastocysts
3. The stem cells can regenerate themselves in vitro virtually forever
4. Indian research centres also created a few cell lines which can be developed into many types of tissues
Which of these statements are correct?
(a) 1, 2, 3 and 4
(b) 1, 2 and 3
(c) 1, 2 and 4
(d) 3 and 4
317: In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group ?
(a) 21
(b) 22
(c) 23
(d) 24
318: In which one of the following States of India it is legal for a Hindu male and illegal for a Muslim male to have more than one living wife ?
(a) Nagaland
(b) Mizoram
(c) Goa
(d) Arunachal Pradesh
319: HINDALCO, an aluminium factory located at Renukut owes its site basically to
(a) proximity of raw materials
(b) abundant supply of power
(c) efficient transport network
(d) proximity to the market
320: The most preferential poultry feed is:
(a) Maize
(b) Barley
(c) Wheat
(d) Rice husk