56: Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?
(a) Malaria is caused by several species of Plasmodium
(b) Man does not develop, immunity to malaria during natural infection
(c) Vaccines can be developed only against bacteria
(d) Man is only an intermediate host and not the definitive host
57: The thermoregulatory centre of the man body is
(a) Pituitary
(b) Skin
(c) Hypothalamus
(d) Thyroid
58: What is IndoNext which was launched in January, 2005 ?
(a) A new scheme to promote Indian tourism.
(b) A new scheme to promote export of Indian handicrafts.
(c) An association of the Non-Resident Indians to organize Pravasi Bharatiya Divas every year in India.
(d) An alternative trading platform being promoted by the Bombay Stock Exchange and Regional Stock Exchanges.
59: Assertion (A)
The First War of Indian Independence started in 1857
Reason (R)
The soldiers refused to use the greased cartridges
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is incorrect but R is correct
(d) if A is correct but R is incorrect
60: The Vitamin containing cobalt is
(a) B1
(b) B2
(c) B6
(d) B12