Genetics

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Across
  1. 4. The genetic makeup of an organism (like a recipe)
  2. 5. An organism's physical appearance or visible traits
  3. 6. The scientific study of genes and heredity
  4. 8. The stronger allele that is always expressed
  5. 11. Can be masked by a dominant allele; expressed only when two recessive alleles are present
  6. 12. An organism with two different alleles for a trait (like Rr or rR)
Down
  1. 1. A segment of DNA on a chromosome that codes for a specific trait
  2. 2. An organism with two identical alleles for a trait (like RR or rr)
  3. 3. Passing of traits from parents to offspring
  4. 7. Structures inside cells made from DNA and protein
  5. 9. A specific characteristic of an individual (like eye color or height)
  6. 10. All the genetic information in an organism; all of an organism's chromosomes