genetics

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Across
  1. 4. the shape of a DNA molecule
  2. 5. the formation of egg and sperm cells
  3. 6. a specific characteristic of an organism
  4. 7. genetic information
Down
  1. 1. a threadlike structure of nucleic acids and protein
  2. 2. a specific location on a chromosome
  3. 3. a single cell divides into two identical daughter cells
  4. 5. random changing of DNA