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Which one of the following statements is correct?  

  

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Which one of the following statements is correct? 

(a) Legumes fix nitrogen only through the specialized bacteria that live in their roots. 

(b) Legumes fix nitrogen independently of the specialized bacteria that live in their roots. 

(c) Legumes fix nitrogen only through specialized bacteria that live in their leaves. 

(d) Legumes are incapable of fixing nitrogen.

This topic was modified 2 months ago 2 times by mohan dash
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The option is (a) Legumes fix nitrogen only through the specialized bacteria that live in their roots. 

Explanation:

The nitrogen­fixing ability of leguminous plants is not a property of the plants as such but results from infection of their roots by bacteria in the soil, infection leading to the formation of nodules. These organisms are Gram­negative motile rods that are classified in the genus Rhizobium.

This post was modified 2 months ago by papu kumar
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