Heredity and genetics

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Across
  1. 3. Biological evolution that occurs by chance
  2. 6. general term, means change over time
  3. 7. How reproductively successful an organism is in its environment
  4. 8. A heritable trait that increases an individual's fitness
  5. 9. A sequence of DNA that codes for a particular trait
Down
  1. 1. Process by which new species are generated
  2. 2. The process by which traits that improve an organisms chances for survival
  3. 4. Changes in DNA
  4. 5. selection Process of selection conducted under human direction