Dr. Khayati Santram
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Three Germ layers 

Three Germ Layers An embryonic disc is made up of three germ layers. The name of these three embryonic gem layers are ectoderm, endoderm and mesoderm. This three germinal layer disc is formed during third week of intrauterine life. After fertilization cleavage take place in which eight cell stage is converted into sixteen cell stage… Continue reading Three Germ layers