Design a virus to insert it into place... What could go wrong?
TYRELL
The facts of life. I’ll be blunt.
To make an alteration in the
evolvement of an organic life
system, at least by men, makers
or not, is fatal. A coding
sequence can’t be revised once
it’s established.
BATTY
Why?
TYRELL
Because by the second day of
incubation any cells that have
undergone reversion mutation
give rise to revertant colonies —
like rats leaving a sinking ship.
The ship sinks.
BATTY
What about E.M.S. recombination?
TYRELL
We’ve already tried it — ethyl
methane sulfonate is an alkylating
agent and a potent mutagen — it
created a virus so lethal the
subject was destroyed before we
left the table.
BATTY
Then a repressor protein that
blocks the operating cells.
TYRELL
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... but all this is academic...
you are made as well as we could
make you.
BATTY
But not to last?