Biology: Chapter 8 Crossword

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Across
  1. 3. The passing of traits from parents to offspring
  2. 7. The physical appearance of a trait
  3. 9. When two differing alleles for a gene are present
  4. 11. A family history that shows how a trait is inherited over several generations
Down
  1. 1. The trait expressed when both alleles are present
  2. 2. When two dominant alleles are expressed at the same time
  3. 4. A diagram that predicts the expected outcome of a genetic cross
  4. 5. When two of the same alleles for a gene are present
  5. 6. The set of alleles that an individual has
  6. 8. The different versions of a gene
  7. 10. The trait not expressed when both alleles are present
  8. 12. The branch of biology that focuses on heredity