chapter10

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Across
  1. 1. an embryonic stage that consists of a hollow ball of cells
  2. 3. a fertilized egg and the first few cells in an embryo are able to form any kind of cell and tissue
  3. 6. the production of genetically identical offspring form a single parent
  4. 8. unspecialized cells that can develop into differentiated cells
  5. 13. adult stem cells which can produce many, but not all, types of differentiated cells
  6. 14. the third phase of mitosis, begins when sister chromatids suddenly separate and begin to move apart
  7. 15. a mass of cells formed when cells divide uncontrollably
  8. 16. the chromosomes in eukaryotic cells form a close association with histones, a type of protein
Down
  1. 2. the division of the cytoplasm
  2. 4. packages of DNA
  3. 5. the process by which a cell divides into two new daughter cells
  4. 7. the use of chemicals to kill cancer cells
  5. 9. an early stage of development that humans, pets and petunias all pass through
  6. 10. the division of the nucleus
  7. 11. each DNA strand in the duplicated chromosome
  8. 12. a disorder in which cells divide uncontrollably