Biology Chapters 1 and 8

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Across
  1. 3. Animals, protists, plants, and fungi have these kinds of cells.
  2. 5. a typical human cell has two sets of __________.
  3. 6. Chromosomal abnormalities can be detected through a ___________.
  4. 8. Organisms with __________ cells are unicellular and microscopic.
  5. 9. ________ only makes up 10% of the cell division process.
  6. 11. Our _____ contains the information that determines inherited characteristics.
  7. 17. Chromatids are joined together at the ___________.
  8. 18. The biochemical units of heredity that make up the chromosomes.
  9. 19. Prokaryotic cells divide through ______ _________.
  10. 20. These proteins help make up chromatin.
Down
  1. 1. The __________ of evolution says humans evolved from apes.
  2. 2. A scientific approach that explains nature through the proposing and testing of hypotheses.
  3. 4. What is the basic unit of matter?
  4. 7. _________ cells have pairs of homologous chromosomes.
  5. 10. Nondisjunction is when the chromosomes fail to __________.
  6. 12. Haploid cells have one set of chromosomes, which are ________.
  7. 13. If you created a possible explanation for a set of observations, it would be a ________.
  8. 14. Trisomy 21 causes _____ __________.
  9. 15. These kinds of tumors do not spread.
  10. 16. What kind of experiment did Francesco Redi use to disprove spontaneous generation?