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Question

Study the following statements and choose the correct option.
(i) Sulphur is present in two amino acids - cysteine and valine
(ii) Lower level of N, K, S, and Mo causes inhibition of cell division
(iii) Microbe that produces nitrogen fixing in the roots of non-leguminous plant Alnus is Frankia
(iv) Denitrification is carried by bacteria Nitrosomonas and Nitrobacter.

A
i and ii alone are correct
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B
i and iii alone are correct
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C
ii and iii alone are correct
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D
ii and iv alone are correct
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E
i and iv alone are correct
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Solution

The correct option is C ii and iii alone are correct
a) Sulphur is constituent of two amino acid - methionine and cysteine.
b) The lower level of N, K, S and Mo cause inhibition of cell division.
c) Frankia is free-living microbe fix atmospheric nitrogen in the roots of non-leguminous plant like Alnus.
d) Denitrification is carried by bacteria Nitrosomonas and Thiobacillus.
So the correct answer is 'ii and iii alone are correct'.

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