Chapter 8 Crossword Puzzle

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Across
  1. 6. One whose trait always shows up in the organism when the allele is present.
  2. 9. When both alleles for a gene are expressed equally.
  3. 12. An organism's physical appearance or visible traits
  4. 13. The study of heredity.
  5. 14. The factors that control a trait.
  6. 15. A number that describes how likely it is that an event will occur.
Down
  1. 1. Hidden whenever the dominant allele is present.
  2. 2. An organism that has two different alleles for a trait.
  3. 3. An organism's genetic makeup, or alleles.
  4. 4. The offspring of many generations that have the same form of a trait.
  5. 5. Each specific characteristic.
  6. 7. When a new organism forms when sperm and egg cells join.
  7. 8. A chart that shows all the possible ways alleles can combine in a genetic cross.
  8. 10. The different forms of a gene.
  9. 11. The passing of physical characteristics from parents to offspring.