Living Environment Review

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Across
  1. 5. A guide that compares pairs of observable traits to help the user identify an organism
  2. 7. The process of choosing a few organisms with desirable traits to serve as the parents of the next generation
  3. 8. One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
  4. 9. The disappearance of all members of a species on Earth
  5. 11. The result of activated genes
  6. 15. The process by which the organisms that are best adapted to a specific environment survive and produce more offspring than organisms that are not as well adapted
  7. 16. The passing of traits from parent to offspring
  8. 17. A technique used to make identical organisms
  9. 18. A set of technologies that humans use to alter the genetic instructions of an organism by substituting DNA molecules
  10. 19. Any alteration in the sequence of DNA
Down
  1. 1. A combination of technology and biological sciences
  2. 2. Any trait that helps an organism survive and reproduce under a given set of environmental conditions
  3. 3. A segment of DNA that contains the code for a specific trait
  4. 4. A characteristic that is passed from parent to offspring through genes
  5. 6. A laboratory technique used to separate mixtures of molecules
  6. 10. My favorite teacher
  7. 12. To copy
  8. 13. A tool that allows scientists to separate mixtures of molecules according to size
  9. 14. The normal differences found among offspring