(c) Gibberelins
      (d) Cytokinins
Ans: (c)
340. Lecuminous plants are recommended for rotation of crops because they
      (a) kill harmful insects
      (b) require little amount of water
      (c) help in Nitrogen fixation
      (d) are cash crops
Ans: (c)
341. The drug Ergot is obtained from
      (a) Alga
      (b) Fungus
      (c) Bacteria
      (d) Virus
Ans: (b)
342. The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.
      (a) Caeselpinea
      (b) Bryophyllum
      (c) Centella
      (d) None of the above
Ans: (b)
343. Who is called the father of modem antiseptic surgery?
      (a) Edward Jenner
      (b) Joseph Lister
      (c) Louis Pasteur
      (d) William Harvey
Ans: (b)
344. Which one of the following is viral disease?
      (a) Syphilis
      (b) Influenza
      (c) Lock Jaw
      (d) Typhoid
Ans: (b)
345. Name the nematode which lives in lymph vessels of man.
      (a) Ascaris
      (b) Hook worm
      (c) Filarial worm
      (d) Guinea worm
Ans: (c)
346. The bacteria that gets into our body is consumed by
      (a) RBC
      (b) Blood platelets
      (c) Plasma
      (d) Phagocytes
Ans: (d)
347. Small pox is caused by
      (a) bacteria
      (b) fungus
      (c) virus
      (d) algae
Ans: (c)
348. The deficiency of Vitamin A which leads to poor vision during night is termed
      (a) nyctolopia
      (b) myopia
      (c) glaucoma
      (d) colour blindness
Ans: (a)
349. Vaccine for influenza has been discovered by
      (a) Khorana
      (b) John
      (c) Mittel