Here are the correct matches between Column A and Column B:
- bacteriophage: b. a virus that infects bacteria
- capsid: e. the protein coat that surrounds a virus
- lysogenic infection: c. the type of infection in which a virus does not immediately start replicating itself but inserts a piece of DNA into the host cell's genome which becomes activated at a later date
- lytic infection: d. a type of infection in which a virus immediately starts replicating in the host cell
- prophage: a. a piece of virus DNA that becomes a part of a bacterium's genome - until activated to produce new bacteriophages
- retrovirus: f. a virus that, upon infection of a host cell, makes a DNA copy of its RNA and inserts that piece of DNA into the cell's genome