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Question

A prokaryotic organism contains chlorophyll a, may form colonies surrounded by a gelatinous sheath and sometimes possesses heterocysts. Which conclusion is correct?

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Explanation

Cyanobacteria are photosynthetic prokaryotes placed in Kingdom Monera. They contain chlorophyll a, their colonies commonly possess a gelatinous sheath, and some forms fix atmospheric nitrogen in specialised cells called heterocysts.

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