Texts: Name: Laynee Pono
VIRUSES
TASK 1: Fill in the Blanks
TASK 2: Diagram Analysis
The life cycle of a virus involves the injection of its DNA into the host cell.
A shorter term for bacteriophage is phage.
During the lytic cycle, new viral components are made.
A virus is a non-living infectious agent capable of replicating using the cellular machinery of a host cell.
During release, the host cell is lysed.
The genetic material in a phage is composed of DNA.
Identify the types of viral replication.
TASK 3: Crossword
ACROSS
2. Through many of these, the prophage gets replicated many times.
4. Proteins on this structure puncture the surface of the host cell.
6. A virus attaches to this part of its host.
9. During this stage, the cell is lysed and the phages escape into the extracellular environment.
12. A virus whose host is a bacterium.
13. During this process, the prophage enters the lytic cycle.
DOWN
1. A virus that has RNA instead of DNA.
3. The destruction of a cell.
5. When a virus connects itself to the surface of a host.
7. Transcriptase is the enzyme that retroviruses use to make DNA from their RNA.
8. During this process, the viral DNA is spliced into the host DNA.
10. During the cycle, the viral DNA is replicated along with the host DNA.
11. The phage can switch between lytic and lysogenic cycles.
