4 Written Questions
4 Multiple Choice Questions
- causes disease in tobacco plants.
- bacterial viruses with a polyhedral head & a helical tail.
- contains only a nucleic acid.
- viral DNA become integrated into the host cell's DNA.
4 True/False Questions
HIV → the virus that causes AIDS.
Viruses → contains only a nucleic acid.
clearcutting of forests → is a part of biology because they are active inside living cells.
capsid of a virus → is the protective outer coat.