276: If a mouse of over eight times its normal size has been produced by introducing human growth hormone gene, the technique involved is called

(a) Hybridisation

(b) Genetic engineering

(c) Mutation Breeding

(d) Hormonal feeding
277: India has experienced persistent and high food inflation in the recent past,what could be the reasons?

1.Due to a gradual switchover to the cultivation of commercial crops, the area under the cultivation of food grains has steadily decreased in the last five years by about 30%.

2. As a consequnce of increasing incomes, the consumption patterns of the people have undergone a significant change.

3. The food supply chain has structural constraints.

Which of the statements given above are correct ?

(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
278: Poliomyelitis is an epidemic virus infection. Which of the following is responsible for it?

(a) Rhabdo virus

(b) Entero virus

(c) Dengue virus

(d) Mumps virus
279: If in an election to a State Legislative Assembly the candidate who is declared elected loses his deposit, it means that

(a) the polling was very poor

(b) the election was for a multi-member constituency

(c) the elected candidate's victory over his nearest rival was very marginal

(d) a very large number of candidates contested the election
280: Kahuta is:

(a) A bird sanctuary in Tamil Nadu

(b) A tribe of Mizoram

(c) A place in Pakistan where nuclear research centre is located

(d) None of the above