Chapter 19.2

Question 1

Host Range

Answer 1

Each virus has a host range, a limited number of host cells that it can infect

Question 2

The Lytic Cycle

Answer 2

The lytic cycle is a phage replicative cycle that culminates in the death of the host cell

Question 3

Virulent Phage

Answer 3

A phage that reproduces only by the lytic cycle is called a virulent phage

Question 4

Restriction Enzymes

Answer 4

Bacteria have defenses against phages, including restriction enzymes that recognize and cut up certain phage DNA

Question 5

The Lysogenic Cycle

Answer 5

The lysogenic cycle replicates the phage genome without destroying the host