When Mulcahey was sent to check up on the status of the
emitter, he was assaulted with extraction tubules from the
emitter. However, contrary to standard Borg assimilation
procedures, Mulcahey himself was not assimilated or turned into
a drone. Instead, the tubules extracted a sample of DNA from the
officer. Within the assimilated lab the Borg technology
constructed a maturation chamber, where a Borg fetus grew out of
the DNA sample. Within hours the fetus had matured into a fully
grown Borg drone, a rate of development far out-pacing standard
Borg maturation cycles, with the mobile emitter running his
neocortex.
