Final answer:
The statement that is true of the nucleotides found in viruses is that viruses contain either DNA or RNA, but not both. Viruses are acellular and rely on a host cell to replicate.
Step-by-step explanation:
The correct answer is C. Viruses contain either DNA or RNA, but not both. Viruses are complex entities that use nucleic acids as their genetic material. Unlike cells, which contain DNA as the genetic material, viruses may have either DNA or RNA, which determines their classification into DNA viruses or RNA viruses.
It is important to note that viruses are acellular and can only replicate inside a host cell. They use the machinery of the host cell to produce new virus particles.
Furthermore, the true of the nucleotides is that the viral genomes tend to be small and efficient, only containing the necessary genes to produce the proteins they cannot obtain from the host.