Lucas IIA In practice, it is most likely that skin
cells will not be able to be turned directly into
bone marrow cells: there will need to be a stage of
totipotency in between.
The most likely way of
producing cells to treat Lucas II is via the cloning
route, where a skin cell nucleus is passed through
an oocyte to give a totipotent cell.
The production
of a totipotent stem cell is the production of an
embryo.