C. Astigmatism          3. Cylindrical lens
     D. Colour blindness     4. Plane glass
                             5. Cannot be rectified
          A         B        C         D
     (a)  1         4        3         5
     (b)  2         1        3         5
     (c)  2         5        1         4
     (d)  4         1        5         3
Ans: (b)
349. Match the following:
     Name of Vitamin         Chemical name
     A. Vitamin B1           1. Cyanocobalamin
     B. Vitamin B2           2. Pyredoxine
     C. Vitamin B6           3. Thiamine
     D. Vitamin B12          4. Riboflavin
          A         B        C         D
     (a)  1         3        4         2
     (b)  2         1        4         3
     (c)  3         4        1         2
     (d)  3         4        2         1
Ans: (d)
350. Match the following:
     Vectors                 Diseases
     A. Tse-tsefly           1. Yellow fever
     B. Aedesmosquito        2. Sleeping sickness
     C. Water snail          3. Bilharzia
     D. Sandflies            4. Leishmaniasis
          A         B        C         D
     (a)  1         3        4         2
     (b)  2         1        4         3
     (c)  3         4        1         2
     (d)  3         4        2         1
Ans: (b)
351. Consider the following statements:
     1) Dengue is a protozoan disease transmitted by mosquitoes.
     2) Retro-orbital pain is not a symptom of Dengue.
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