Practice question
Question
A cell contains naked circular genomic DNA, 70S ribosomes, inclusion bodies and pigment-containing membranous extensions, but no membrane-bound organelles. Which interpretation is most appropriate?
Explanation
Naked circular genomic DNA, 70S ribosomes, inclusion bodies and absence of membrane-bound organelles identify a prokaryotic cell. Pigment-containing membranous extensions are chromatophores found in some prokaryotes such as cyanobacteria.
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