stem cells 1

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Across
  1. 3. early embryo stage that contains the inner cell mass
  2. 7. potency of cells that can form all body cells but not the placenta
  3. 8. group of cells inside the blastocyst that will form the embryo
  4. 11. process by which a cell becomes specialized
  5. 12. three layered embryo formed after the blastocyst stage
  6. 15. germ layer that forms liver and pancreas
  7. 16. adult cells often have this type of potency
  8. 17. a single cell stage formed after fertilization
Down
  1. 1. germ layer that forms skin and nervous system
  2. 2. cell division leading to two daughter cells
  3. 4. fusion of sperm and egg
  4. 5. embryonic stem cells have this type of potency
  5. 6. cells that can both proliferate and differentiate
  6. 9. early ball of cells that form before the blastocyst forms
  7. 10. stage occuring after about 5 days of embryonic development
  8. 13. potency of cells that can form all body cells as well as extraembryonic tissue
  9. 14. stem cells divide in this unequal manner