Editing Viral Biology (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Virus''' — A submicroscopic infectious agent that replicates only inside the living cells of an organism.
* '''Capsid''' — The "Protein Shell" that protects the virus's genetic material.
* '''Envelope''' — A fatty outer layer (stolen from a host cell) that some viruses (like COVID) use to hide from the immune system.
* '''Bacteriophage''' — A virus that "Eats" bacteria (literally "Bacteria-eater").
* '''Lytic Cycle''' — When a virus enters a cell, copies itself immediately, and "Bursts" the cell open to release new viruses.
* '''Lysogenic Cycle''' — When a virus "Hides" its DNA inside the host's DNA, waiting for years before it "Wakes up" and attacks.
* '''Reverse Transcriptase''' — A special enzyme used by Retroviruses (like HIV) to turn their RNA back into DNA—the opposite of how human cells normally work.
* '''Spike Protein''' — The "Key" on the surface of a virus used to "Unlock" and enter a human cell.
* '''Vector''' — An organism (like a mosquito) that carries a virus from one person to another.
* '''Virulence''' — The "Severity" or harmfulness of a virus.
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