English to Spanish Other Social Science, Sociology, Ethics, etc. ethics/cloning

It should be noted, however, that the amount of new information regarding the stability of the differentiated state derived from this experiment is small, as no attempt was made to document that the donor cells were fully differentiated cells, the genes of which expressed specialized mammary gland proteins. In the earlier experiments with frogs, the fact that the donor cells were fully differentiated was documented in such a manner. In the present case, Dolly could have been derived from a less-differentiated cell in the population, such as a mammary stem cell.

Mi versión:
En los primeros experimentos con ranas, el hecho de que las células donantes fueran completamente diferenciadas fue documentado de esa manera. En el presente caso, Dolly pudo haber provenido de una célula menos diferenciada en la población, como el caso de una célula madre mamaria.