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  • Go through the following statements. I.    The membrane surrounding the bacteroids is called bacteroid membrane. II.    Rhizobial cells produce

Go through the following statements.
I.    The membrane surrounding the bacteroids is called bacteroid membrane.
II.    Rhizobial cells produce nod (nodulation) factors towards the root hairs 
III.    The roots of young leguminous plants secrete a group of chemical attractants like sugars and carotenoids
IV.    The lectin-nod factor interaction induces growth and curling of root hairs around Rhizobia.

Choose the option with correct statements
 

Option: 1

I and II
 


Option: 2

II and III
 


Option: 3

II, III and IV
 


Option: 4

II and IV
 


Answers (1)

best_answer
 

The membrane surrounding the bacteroids is called peribacteroid membrane. The roots of young leguminous plants secrete a group of chemical attractants like flavonoids and betaines. Hence, the correct answer is option d.

Posted by

Pankaj Sanodiya

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