General fun

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Across
  1. 4. father of genetics
  2. 5. characters of person autocracy government of one person zoologist person who reads about animals
  3. 6. thick layer over earth scholar pursue academic and intellectual activities
Down
  1. 1. largest marsupials infloroscence arrangement of flower on a plant
  2. 2. combination of acid and base
  3. 3. mass of cells not growing normally