You are an experienced gene therapist who can alter the DNA of a character or creature with greatly improved results.
Prerequisites: Knowledge (Life Sciences) 12 ranks, Research 9 ranks, Intelligence 13.
Benefit: Whenever you perform gene therapy on a character or creature, the number of successes necessary to permanently modify the subject's genetic structure is halved (rounding up). For example, adding an extraordinary ability (Ex) to a subject would normally require 15 successes; a character with the Gene Therapist feat administering the therapy can reduce the number of successes to 8 (15/2 = 7.5, rounded up).