With in vitro clone creation, a host mother must be willing to intake a child of a random host father. The specimens in the male bank are often obtained through donation need, but the ShinRa Underground always gives the host mother a choice of the father.
Using a petri, the two are mixed and withheld, this part of the process becoming more like artificial cloning. Since at this point the egg is free of a possible purification, a direct injection of JENOVA (usually infinitesimally small, 5mL) is administered. After it takes, it is returned to the host. At this point, it sometimes will not take. Several miscarriages have happened this way.
From here, the process is similar to in vivo cloning, in which the dosage is changed and regular check-ups occur at every 2 months, while also monitoring the host as a whole.
If the host mother has a bifurcated uterus, a double in vitro birth may be experimented with, with one the control fetus and the other a clone, to test the changes made in the JENOVAn fetus.
A surprising result comes of this method, that the clone changes faster in growth than an in vivo clone.