What toufka said plus now we have tools to make small edits in specific areas of interest (search CRISPR&#x2F;Cas9 if you are interested to learn more) in mammalian cells.<p>If we deliver it as a payload with targeting sequences and the &quot;corrections&quot; template which are needed to introduce the changes would be amazing, as we would be able to make corrections in specific cells in specific areas of the DNA. Unfortunately the efficiency of this technology is not high enough yet for prime time.