Which one of the following pairs is not correctly matched?
A
Rhizobium- Biofertilizer
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B
Streptomyces- Antibiotic
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C
Serratia- Drug addiction
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D
Spirulina- Single cell protein
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Solution
The correct option is CSerratia- Drug addiction Rhizobium produces nodules in the root nodules where they fix nitrogen gas (N2) from the atmosphere turning it into a more readily useful form of nitrogen (N).
The most interesting property of Streptomyces is the ability to produce bioactive secondary metabolites, such as antifungals, antivirals, antitumor and, anti-hypertensives, immunosuppressants, and especially antibiotics.
Serratia is known to cause nosocomial infections.
Spirulina has a high supply of carotenoids such as beta-carotene and yellow xanthophylls and is used as single cell protein.