2421: With reference to the use of nano-technology in health sector, which of the following statements is/are correct?
1. Targeted drug delivery is made possible by nanotechnology.
2. Nanotechnology can largely contribute to gene therapy.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 Only
(c) Both 1 and 2
(d) Neither 1 nor 2
2422: Climate is extreme, rainfall is scanty and the people used to be nomadic herders.
The above statement best describes which of the following regions?
(a) African Savannah
(b) Central Asian Steppe
(c) North American Prairie
(d) Siberian Tundra
2423: Among the following organisms, which one does not belong to the class of other three ?
(a) Crab
(b) Mite
(c) Scorpion
(d) Spider
2424: Who among the following were the founders of the "Hind Mazdoor Sabha" established in 1948 ?
(a) B. Krishna Pillai, E.M.S. Namboodiripad and K.C. George
(b) Jayaprakash Narayan, Deen Day al Upadhyay and M.N. Roy
(c) C.P. Ramaswamy Iyer, K. Kamaraj and Veeresalingam Pantulu
(d) Ashok Mehta, T.S. Ramanujam and G.G. Mehta
2425: Recently, LASIK (Laser Assisted In Situ Keratomileusis) procedure is being made popular for vision correction. Which one of the following statements in this context is not correct ?
(a) LASIK procedure is used to correct refractive errors of the eye
(b) It is a procedure that permanently changes the shapes of the cornea
(c) It reduces a person's dependence on glasses or contact lenses
(d) It is a procedure that can be done on the person of any age