Applied Bio 20.1

Multiple Choice

A nonliving particle that contains DNA or RNA and is protected by a protein coat is called a

• cell

• virus

• bacterium

• protein

Multiple Choice

In any lysogenic infection, the viral DNA

• is inserted into the host DNA

• destroys the host DNA

• replaces the host DNA

• is destroyed by the host DNA

Multiple Choice

A virus that infects and kills bacteria is known as a(an)

• viral gene

• bacterium

• bacteriophage

• retrovirus

Multiple Choice

Which viral structure enables a virus to bind to receptors on the cell?

• capsid

• tail fiber

• tail sheath

• head

Multiple Choice

The life cycle of a lytic virus does NOT involve

• infection

• cell death

• replication

• lysogenic infection