Heredity

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Across
  1. 7. passing to features to offspring
  2. 8. physical appearance
  3. 9. different forms of gene
  4. 10. allele: masked by dominant allele
Down
  1. 1. allele: always present in organism
  2. 2. genetic makeup
  3. 3. factors that control a trait
  4. 4. offspring that has parents of the same trait
  5. 5. study of heredity
  6. 6. crucial geneticist