*All services provided by the Mouse Genome Editing Resource maintains a 'best effort' guarantee unless noted otherwise. Due to the complex nature of transgenesis and gene targeting, extra fees may apply for unusual projects such as conditional deletion of a large fragment or knock-in of large DNA piece. In addition, the core cannot guarantee that genetically altered mice will be generated if genetic alteration results in lethal or infertile phenotypes. In such cases, a full charge may apply after three attempts.
**NOTE: External users should contact the Director of the Mouse Genome Editing Resource for a quote.