ISSN: 2168-9849
Islam M. Saadeldin
In mammalian fertilization process, female pronucleus share male pronucleus to form the zygote which undergoes mitotic division yielding totipotent cells. After morula compaction, the embryonic cells differentiate into two types of cells; the inner cell mass cells which have the pluripotent stemness criteria to form the embryo proper, and the trophectoderm which would share the placenta formation.