stem cell clinic Options
The zygote, that is the cell ensuing through the fertilization of an oocyte by a spermatozoon, is totipotent. Many successive cell divisions create the morula, with 32–sixty four totipotent cells. After that stage, it develops in to the blastocyst, which consists of a hollow ball of cells. Peripheral cells (the trophoblast) from the blastocyst pr