| embryo research | 3.75 | Embryo research is an emotive issue. | ||
| embryo cell | 2.30 | Later, mice, sheep and cattle were cloned from embryo cells. | ||
| embryo development | 0.53 | Schatten hired Dominko and several other experts in embryo development to do the work. | ||
| embryo transfer | 0.46 | And if Mrs. Gemeny dies before her sister can become pregnant through an embryo transfer? | ||
| embryo adoption | 0.39 | In Britain, embryo adoption is tightly regulated. | ||
| embryo destruction | 0.39 | Catholic leader backs embryo destruction. | ||
| embryo selection | 0.33 | But that is just unaltered embryo selection. |