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What are heterocysts?? |
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Answer» ??thanku?? Heterocysts are specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria, such as Nostoc punctiforme, Cylindrospermum stagnale, and Anabaena sphaerica. Heterocysts is present in some cyanobacteria. It is a large-sized, pale coloured, thick walled cell which occur in terminal, intercalary or lateral position in filamentous cyanobacteria, e.g., Nostoc. |
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