Ch.3 Crossword puzzle

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Across
  1. 6. each human reproductive cell
  2. 12. another word for genetic inheritance
  3. 13. recessive pattern
  4. 14. the entire packet of instructions to make a living organism
  5. 15. DNA molecules are stored on a
  6. 17. also know as trisomy 21
  7. 18. different variations of polymorphic
  8. 19. many shapes
  9. 20. also called fraternal twins
Down
  1. 1. stored on a chromosome
  2. 2. male reproductive cell
  3. 3. able to produce any type of cell
  4. 4. the actual appearance and manifest behavior of the person
  5. 5. comes from both of your parents
  6. 7. sperm and ovum combine to form a new living cell
  7. 8. an addiction to alcohol
  8. 9. about 20,000 in all for a human
  9. 10. the inability to conceive after at least a year of trying
  10. 11. also called identical twins
  11. 16. female reproductive cell