Analysis of mRNA Expression During Preimplantation Development

Preimplantation-stage mammalian embryos are very simple morphologically, being composed of mostly round cells that exhibit only a limited range of changes in cell shape, namely those associated with compaction and formation of the trophectoderm cell lineage. This morphological simplicity, however, belies a much greater complexity of events that occur at the molecular level. Throughout preimplantation development