Question Detail
Question
Despite being considered 'non-living' by some, viruses exhibit a key characteristic of living organisms: they possess genetic material. This genetic material can be:
Correct Answer
Option D is the correct answer.
Detailed Explanation
The document states under 'General characteristics and properties of viruses' that 'Viruses contain either DNA or RNA, but a single species of virus will never contain both.'
Hint
Remember the specific rule about the type of nucleic acid found in a *single species* of virus.