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Question

Coralloid roots of Cycas are useful in

A
N2-fixation
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B
Absorption of water
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C
Transpiration
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D
Fixation
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Solution

The correct option is C N2-fixation
Coralloid roots of Cycas are useful in Nitrogen fixation. It is negatively genotypic roots that contain nitrogen fixation bacteria like cyanobacterium.
They are found in cycad plants. It is important as it supply nitrogen to the bacteria which is required for the growth and development of the plant.

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