Chapter 8 Vocab

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Across
  1. 5. An organism that has two different alleles for a trait.
  2. 8. The passing of physical characteristics from parents to offspring.
  3. 11. When three or more possible alleles determine the trait.
  4. 13. An organism's physical appearance.
  5. 16. The allele hidden when the dominant allele is present.
  6. 17. The allele whose trait always shows up in the organism when it is present.
Down
  1. 1. When more than one gene affects a trait.
  2. 2. The scientific study of heredity.
  3. 3. Each specific characteristic of an organism.
  4. 4. An organism that has two identical alleles for a trait.
  5. 6. The offspring of many generations of organisms that have the same form of a trait.
  6. 7. When both alleles for a gene are expressed equally.
  7. 9. When one allele is only partially dominant.
  8. 10. An organism's genetic makeup or alleles.
  9. 12. The different forms of a gene.
  10. 14. The number that describes how likely the occurrence of an event is.
  11. 15. Word used by scientists to describe the factors that control a trait.