Transfection
Efficiency
exo utero electroporation was performed for E12.5 embryos, whereas in utero
electroporation was performed at E13.5 and E15.5. Survival and EYFP+ rates
(percentages) were calculated for every litter from the number of surviving
embryos/operated and EYFP-positive/surviving embryos, respectively. The
data are represented as mean ± SEM.