# Additional Services Sort**Services** Harvard - Internal (with 33-digit code) Harvard - External Non-Harvard Academic & Non-Profit For-Profit & Industry gRNA Validation prep (1st gRNA) $842 gRNA Validation prep (each additional gRNA, up to 5) $529 DNA construct recovery by electroelution and purification for a microinjection project $937 Plasmid DNA purification $342 Cell pellet for DNA extraction, not mycoplasma tested (1 vial, 6-well) $80 Cryopreserved mutant ES cells, mycoplasma tested (1 vial, 6-well) $363.3 Cryopreserved mouse embryos, 25-30 embryos per straw (at 1-cell, or 2-cell, or 8-cell stage) Up on request Mouse colony breeding (per breeding cage set up) $136 Per diems for breeding cages and offspring after weaning (per cage, per day) $2.41 Mouse ID tag & tail biopsy (per mouse) $9.99 Mouse tail DNA extraction (per sample) $11.08 Mouse or material exportation fee (shipping and supplies) TBD Technical Service, per hour $85.44 Consultation: services include discussion of issues concerning transgenes, targeting constructs, ES cell lines, selection and mouse colony breeding strategies, cryopreservation and rederivation strategies and preparations To initiate a request, please fill out the [Service Request Form](/file_url/96), and forward the signed and dated form to the GMF office at , as an email attachment. ***Disclaimer:*** Harvard-External users pay 8% more than Harvard-Internal users (with 33-digit code). Non-Harvard Academic & Non-Profit users pay 18% more than Harvard-Internal users. Service fees for Industry & For-Profit users are given upon request. *The GMF reserves the right to change fees without prior notice.* (Return to [Services and Fees](/pages/services-and-fees) listing)