Erwin: I'm afraid that number's ex-directory zialipro dosage "In order for a Dolly-like clone to be born it is necessary to have females of a closely related species to provide unfertilized eggs, and, if cloned embryos are produced, to carry the pregnancies. Cloning depends on having two cells," Wilmut wrote. "One is an egg recovered from an animal around the time when usually she would be mated."