The DNA synthesis that starts the process has variable yields. Our process is within a factor of 2 on each synthesizer run. Other synthetic DNA providers may have more variability in the amount produced. During synthesis when a new base doesn't couple, there is a chemical trick, called capping, that terminates that strand changing a deletion error into a short strand.

We then combine the DNA to make a longer strand, a gene. Then we check to make sure it is perfect. Biologists are usually picky about that. Not these bastards.

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Vaccination required? Not if we leave.
Now in Florida, heart rate dropping, nicer people