Question

Select the mismatch :-

• A. Frankia–Alnus
• B. Rhodospirillum–Mycorrhiza
• C. Anabaena–Nitrogen
• D. Rhizobium–Alfalfa

Answer 1

The correct option is B Rhodospirillum–Mycorrhiza

Mycorrhiza is the association of the fungus with the root of the vascular host plant. It increases the water and nutrition absorption capacity of the plant.
Rhodospirillum - mycorrhiza (the association of the fungus with the root of the vascular host plant).
Rhodospirillum is a facultative anaerobe. It is a nitrogen fixer which helps in the conversion of atmospheric nitrogen to ammonia. It is not associated with roots of the vascular plant as mycorrhiza.

So, the correct answer is 'Rhodospirillum–Mycorrhiza'.