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Question : Consider the following statements :- (i) Bacteria have rigid cell wall made up of cellulose (ii) Bacteria do not reproduce by sexual reproduction. (iii) Ammonia is oxidised to nitrite by the bacteria Nitrosomonas. (iv) Viruses are obligate parasites, cannot be living without host cell. Which of the statements are correct and incorrect ?

Answer»

i, II CORRECT and III, IV incorrect
ii, iii correct and i, iv incorrect
iii, iv correct and i incorrect
iv correct and i, ii, iii, incorrect

Answer :C


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