Coralloid roots of Cycas possess a symbiotic alga

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An Intiative by Sri Chaitanya

Aulosira

Spirogyra

Ulothrix

Anabaena

answer is D.

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Detailed Solution

Some gymnospersm (Cycas) small specialized roots called coralloid roots are associated with nitrogen fixing cyanobacteria. Eg:- Anabaena.

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