Plant Kingdom Question 108

Question: Coralloid roots of Cycas possess a symbiotic alga [CPMT 1991, 93; Bihar PMT 1996; BHU 1998; Pb. PMT 1999]

Options:

A) Aulosira

B) Spirogyra

C) Ulothrix

D) Anabaena

Show Answer

Answer:

Correct Answer: D

Solution:

Anabaena with coralloid roots is an example of symbiosis.

It helps in $ N_2 $ fixation.

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