Heredity and Genetics

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Across
  1. 5. A segment of DNA that carries the instructions for a specific trait
  2. 6. An allele who trait is only expressed when two copies are present
  3. 7. Having two identical alleles for a trait
  4. 8. A different version of the same gene
  5. 9. An allele that mask the presence of another
Down
  1. 1. Casilla
  2. 2. Having two different alleles for a trait
  3. 3. The physical apperance or observable characteristic resulting from a genotype
  4. 4. The specific combination of alleles and organism has for trait