A flaw very often pointed out in your run of the mill genetic terror story is the instant effect of genetic changes.
What would it take for a specific change in the specimen to actually appear (near) instantly?
I (well not really me, you know right) want to engineer a human individual to grow an additional finger.
- Assume perfect knowledge required to engineer the required genetic code.
- Injection vector etc. is all sorted out.
- Assume high-tech tissue regeneration technology, which could regenerate limbs, but not a complete brain.
My genetic information is now within the specimen. From my (simple) understanding I have now changed the blueprint, the building plan for this individual, right?
- Do I have to, say chop the hand off, and let it regrow, according to the new genetic code?
- Will it grow itself somehow?
- Can this change only occur in the next generation (offspring) and how to avoid this.
EDIT: This is not about changing the code itself, its about making the changes actually appear
Assume an advanced intelligence injecting precise dna snippets into humans. This is my major handwave.
Now I want to reduce -if at all possible- the following handwaves as much as possible, namely the circumstances under with the introduced changes would actually show themselves.
I changed from science-based to reality-check because the answer requires handwaves in its pre-condition.