genetics practice

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Across
  1. 1. An allele whose trait always shows up in the organism
  2. 4. An allele whose trait is masked in the presence of a dominant allele
  3. 6. Factors that control traits
  4. 7. The study of heredity
  5. 8. An organism with two different alleles for a trait
Down
  1. 2. The different forms of a gene
  2. 3. Physical characteristics of organisms
  3. 5. The passing of traits from parents to offspring