2686: Which one of the following diseases is caused due to defective genes?
(a) Ulcer
(b) Haemophilia
(c) Diabetes
(d) Cancer
2687: Consider the following statements:
1. Infant mortality rate takes into account the death of infants within a month after birth.
2. Infant mortality rate is the number of infant deaths in a particular year per 100 live births during that year.
Which of the above statements is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2688: At which one of the following places do two important rivers of India originate, while one of them flows towards north and merges with another important river flowing towards Bay of Bengal, the other one flows towards Arabian Sea?
(a) Mahabaleshwar
(b) Badrinath
(c) Amarkantak
(d) Nasik
2689: The research work of Paul Lauterbur and Peter Mansfield, the Nobel Prize winners for Medicine in 2003, relates to:
(a) Control of AIDS
(b) Magnetic resonance imaging
(c) Respiratory diseases
(d) Genetic engineering
2690: A chair is tilted about two of its legs and then left. It would return to its original position if:
(a) Its centre of gravity falls outside the base.
(b) Its centre of gravity falls within the base.
(c) It is tilted through an angle of 60°.
(d) It will never regain its original position.