4 Written questions
4 Multiple choice questions
- contain RNA or DNA in a protein coat.
- viruses that infect a host cell & have their nucleic acid replicated but don't harm the host cell.
- is most closely associated with emerging viruses.
- contains only a nucleic acid.
4 True/False questions
the study of viruses → is a part of biology because they are active inside living cells.
bacteriophages → bacterial viruses with a polyhedral head & a helical tail.
typical virus → causes disease in tobacco plants.
Viruses → contains only a nucleic acid.