Final answer:
The incorrect characteristic of a virus is that they have organelles. Viruses are acellular and depend on host cells to replicate, having only genetic material and a protein coat.
Step-by-step explanation:
The characteristic of a virus that is not accurate is that they have organelles. Viruses are acellular entities and lack organelles and other structural components associated with living cells, such as ribosomes or a plasma membrane. Instead, viruses are composed of a nucleic acid core and a protein coat called a capsid, and sometimes an outer envelope.
Viruses are obligate parasites, meaning they require a host cell to replicate, which is consistent with being smaller than prokaryotic cells and composed of genetic material and proteins. Virus classification is based on the presence of genetic material in the form of either DNA or RNA but not both, and how they produce their mRNA.