Various - embryonic one

No health benefits or cures have been realized in animal trials using cloned human embryonic stem cells.  This lack of clinical evidence, coupled with the appearance of dangerous side effects in animals (the formation of tumors), has discouraged the use of cloned embryonic stem cells in human clinical trials.

Gastrulation forms three major " germ layers ": ectoderm , mesoderm , and endoderm . By gastrulation, the genes of the zygote genome are being expressed.

Various - Embryonic OneVarious - Embryonic OneVarious - Embryonic OneVarious - Embryonic One

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