A virus binds to a host cell's membrane and injects its DNA into the cell. What typically happens next?
1) The viral mRNA is transcribed from the viral DNA.
2) The viral DNA is reverse transcribed from the viral RNA.
3) The viral DNA is replicated within the cell's nucleus by its host's own machinery.
4) New viral proteins are synthesized, using the host's protein producing machinery.
5) The new viral DNA and proteins assemble into new virus particles.
