Which of the following statement is correct ?

A Azospirillum and Azotobacter live as symbiosis, they fix atmospheric nitrogen and thus enriching the nitrogen content of the soil
B Many members of the genus monascus form mycorrhiza
C Heterotrophic cyanobacteria are used as a biofertilisers in a paddy fields
D Many members of the genus Glomus form mycorthiza

Verified Solution

Answer & Solution

Correct Answer

(D) Many members of the genus Glomus form mycorthiza

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

From 15 mya to 40,000 years back, what will be the correct series of indication in evolution of man ?

GUJCET 2023 Easy

In the given column, which one is mis-matched.

Option	Microbes	Product	Use
(A)	Saccharomyes cerevisiae	Ethanol	Fermented beverages
(B)	Monascus purpures	Cyclosporin-A	Immuno sup present
(C)	Streptococcus	Streptokinase	Clot buster
(D)	Aspergillus niger	Citric acid	Industry

GUJCET 2026 Easy

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