Prokaryotic Nature: Both blue-green algae (cyanobacteria) and bacteria belong to the kingdom Monera.

Absence of True Nucleus: As prokaryotes, they lack a membrane-bound "true" nucleus. Instead, their genetic material (DNA) is naked and located in a region of the cytoplasm called the nucleoid.

Common Traits: They also share other prokaryotic features, such as the absence of membrane-bound organelles (like mitochondria or chloroplasts) and having cell walls primarily composed of peptidoglycan.

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