Being busy discussing things with Stu, I left it to others to pick up on a point made by Musket the other day. Curiously nobody did.

Bill makes a good point re antibiotic resistance. However, my understanding is that this is about "training" your immune system to seek and destroy. Whether there has been an irreversible change in the molecular makeup of your antibodies goes to the heart of what we term evolution.

If your children retain that genetic memory, is that because the mother has passed on sufficient antibody intact or the DNA ability to produce it?

No.