The missing lethal DNA

The article (thanks to Highlander for the tip) takes a look at the guys and gals tasked with finding out what hypothetically possible DNA sequences are not present because they code for proteins, etc. that are inimical to life. It's the DNA that could exist, but doesn't because we have selected ourselves not to have it.

Ok, so that's cool enough on it's face, but at the end was this teaser;

"Further down the line there is the possibility of constructing a "suicide gene" to code for deadly amino acid primes. It could be attached to genetically modified organisms and activated to destroy them at a later date if they turned out to be dangerous, Hampikian suggests."

- Which reminded me of....

Tyrell - "You were built as well as we could make you."

Roy - "But not to last."

Welcome to Los Angeles, 2019.

1 comment:

Red Five said...

Not the first time such a notion has been floated.

In Jurassic Park it was the "Lysine contingency":

"The lysine contingency - it's intended to prevent the spread of the animals is case they ever got off the island, but we could use it now. Dr. Wu inserted a gene that makes a single faulty enzyme in protein metabolism. Animals can't manufacture the amino acid lysine. Unless they're continually supplied with lysine by us, they'll slip into a coma and die."

I once read the notion that the Alien species in Aliens were a biological weapon, one which could be deployed by an alien race (perhaps like that which sent the downed alien vessel whose "distress" call lured the Nostromo, and carried thousands of eggs. They would wipe out a planet's population, and leave the infrastructure intact. A similar biological dependency would be bred into the Aliens, and their "masters" could thus deprive and dispose of them. (Would make an interesting sequel, don't you think?)