Science 7/Genetics

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Across
  1. 4. The scientist known as the "father of genetics" who studied pea plants.
  2. 5. Different versions or forms of the same gene.
  3. 6. The physical appearance or observable expression of a genetic trait (e.g., brown eyes).
  4. 7. The primary organelle in a eukaryotic cell where genetic material is safely stored.
  5. 10. Genes provide the direct instructions for building these complex, hardworking molecules.
  6. 11. An allele that is always expressed when present, masking other versions.
  7. 13. Having two different alleles for a particular gene (e.g., Tt).
  8. 16. A specific characteristic that an organism can pass on to its offspring.
  9. 17. The overall passing of traits from parents to offspring.
  10. 18. The primary molecule that carries all genetic instructions for life.
  11. 19. The internal genetic makeup of an organism, usually represented by a pair of letters.
Down
  1. 1. A sudden change in the sequence of DNA.
  2. 2. Type of reproduction requiring only one parent, resulting in genetically identical offspring.
  3. 3. An allele that is completely hidden unless two copies of it are present.
  4. 8. A threadlike structure found in the nucleus made of tightly coiled DNA.
  5. 9. The grid or square used to predict the possible genetic outcomes of a cross.
  6. 12. Type of reproduction requiring two parents, resulting in high genetic diversity.
  7. 14. A specific segment of DNA that codes for a single trait.
  8. 15. The naturally occurring differences in traits among individuals of the same species.
  9. 17. Having two identical alleles for a particular gene (e.g., TT or tt).