Assertion (A) : Many members of the genus Glomus form mycorrhiza
Reason (R) : Fungi showing symbiotic association with plants forms mycorrhiza

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(A) is correct but R is incorrect

Both (A) and (R) are incorrect

Both (A) and (R) are correct (R) is the correct explanation of (A).

Both (A) and (R) are correct and (R) doesnot explain (A).

answer is C.

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Detailed Solution

Both the assertion and the reason are correct.

Assertion and reason is true. Mycorrhiza is a mutualistic association between certain fungi and the roots of most vascular plants. The fungi involved in mycorrhizal associations are typically from various genera, including Glomus, which is a well-known genus of mycorrhizal fungi. These fungi form symbiotic relationships with plants, benefiting both the fungi and the plants. The fungi assist in nutrient uptake by the plant, especially in the acquisition of essential minerals like phosphorus, while the plant provides carbohydrates to the fungi.

So, the reason correctly explains why many members of the genus Glomus form mycorrhiza – it's because they are among the fungi that engage in symbiotic associations with plants, leading to mycorrhizal relationships.

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