Mutations and Evolution

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Across
  1. 5. the process by which favorable inherited traits become more common over time
  2. 8. a rod-shaped structure within a cell’s nucleus that is composed of DNA and proteins
  3. 9. change in the inherited traits of a population of organisms that occurs over many generations
Down
  1. 1. a trait that is beneficial to an organism
  2. 2. a segment of DNA that determines or helps to determine a trait
  3. 3. a measure of how well an organism can survive and reproduce in a given
  4. 4. a change in a gene
  5. 6. one of two or more forms that a gene could take
  6. 7. a characteristic of an organism