Genetic Terms

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Across
  1. 1. Passing traits from parent to offspring
  2. 3. Threadlike structure carrying genes
  3. 4. Molecule of life’s blueprint
  4. 5. Trait hidden unless paired
  5. 6. Change in DNA sequence
  6. 7. Unit of heredity, coded in DNA
  7. 8. Observable characteristic
  8. 10. Messenger and builder in cells
  9. 12. Genetic makeup of an organism
  10. 13. Physical expression of genes
Down
  1. 2. Building block of DNA and RNA
  2. 4. Trait that masks another
  3. 7. Complete set of genetic material
  4. 9. Variant form of a gene
  5. 11. Three-letter genetic code