Select the mismatch: - Biology MCQ NEET 2017 2026 | ExamTest.live | ExamTest.live

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4 marks (−1)

Select the mismatch:

A $Frankia — Alnus$
B $Rhodospirillum — Mycorrhiza$
C $Anabaena — Nitrogen fixer$
D $Rhizobium — Alfalfa$

Solution & Step-by-step Explanation

- Frankia: Nitrogen-fixing bacteria in root nodules of non-leguminous plants like Alnus. (Correct)Rhodospirillum: A free-living nitrogen-fixing bacterium. Mycorrhiza is a symbiotic association between fungi and the roots of higher plants. This is the mismatch.Anabaena: Cyanobacteria that fix nitrogen. (Correct)Rhizobium: Fixes nitrogen in legumes like Alfalfa. (Correct)

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Select the mismatch:

A

Frankia — Alnus

B

Rhodospirillum — Mycorrhiza

C

Anabaena — Nitrogen fixer

D

Rhizobium — Alfalfa

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Biological Classification Symbiosis

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