GENES AND INHERITANCE

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Across
  1. 3. fetus from embryo from?
  2. 9. chromosome segment
  3. 10. The human cell has 46 ___
  4. 11. dna structure
  5. 12. unit 7 is about
  6. 14. provides energy
  7. 17. A, B, AB, O
  8. 18. the school
  9. 20. eye colour chromosome
  10. 21. red blood cells do not have nucleus to make space for?
  11. 22. deoxyrobonucleic
  12. 23. inheritance is the passing down of ___ from the parents to the offspring
  13. 24. helps the sperm to swim
Down
  1. 1. joined center
  2. 2. XY
  3. 4. inherited from parents to
  4. 5. XX
  5. 6. chromosome thread becomes thicker
  6. 7. copying of DNA
  7. 8. giant chromosome
  8. 12. are the reproductive cells
  9. 13. colour the chromosome
  10. 15. outer layer of egg cell
  11. 16. ___ is one of the scientists that discovered the DNA structure
  12. 19. zygote implants