What is the approximate overall error rate achieved after the Mismatch Repair (MMR) system has corrected the remaining mistakes?

Answer

1 error per $10^9$ or $10^{10}$ bases copied

The final layer of quality control is extremely effective, pushing the overall error rate down to an astonishing 1 error per $10^9$ or $10^{10}$ bases copied.

What is the approximate overall error rate achieved after the Mismatch Repair (MMR) system has corrected the remaining mistakes?
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