raisahussainkhel70 raisahussainkhel70
  • 22-04-2017
  • Biology
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As a fertilized egg divides, the cells differentiate because they

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Shortykatiemcmiken20
Shortykatiemcmiken20 Shortykatiemcmiken20
  • 22-04-2017
Certain genes/cells are activated/turned on (how ever you want to word it)
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mycreed32 mycreed32
  • 22-04-2017
They are twins. Did the embryo split too?
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