We've already tried it.
4 seconds sound clip from the Blade Runner (1982) movie soundboard.
You can hear this line at 01:24:22 in the Blu-ray version of the movie.
Quote context
[...]
- A coding sequence cannot be revised once it's been established.
- What about EMS recombination?
- Ethyl methane sulfonate is an alkylating agent and a potent mutagen.
- It created a virus so lethal the subject was dead before he left the table.
- Then a repressor protein that blocks the operating cells.
- Wouldn't obstruct replication, but it does give rise to an error in replication.
- So that the newly formed DNA strand carries a mutation and you've got a virus again.
[...]