Biology

The correct answer is C: They have chloroplasts.

Cyanobacteria do not have chloroplasts; instead, they carry out photosynthesis in the plasma membrane or thylakoid-like structures. Chloroplasts are found in eukaryotic cells like plant cells.

The other statements are correct:

Cyanobacteria are indeed prokaryotes. They lack a true nucleus and other membrane-bound organelles characteristic of eukaryotic cells. Their genetic material is not enclosed within a nuclear membrane but is present in the form of a circular DNA molecule in the cytoplasm.

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