Genetics and Natural Selection

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Across
  1. 2. selection The process where organisms with beneficial traits survive and reproduce.
  2. 3. A group of the same species living in the same area.
  3. 6. The formation of a new species due to evolutionary changes.
  4. 8. The genetic makeup of an organism, represented by alleles.
  5. 9. A trait that helps an organism survive and reproduce.
  6. 11. The passing of traits from parents to offspring.
  7. 13. A change in DNA that can lead to genetic variation.
  8. 14. A trait that appears when at least one allele is present.
  9. 16. A segment of DNA that codes for a specific trait.
  10. 17. of the fittest The idea that the best-adapted organisms survive and reproduce.
  11. 20. An organism’s ability to survive and reproduce in its environment.
Down
  1. 1. selection The process where humans breed organisms for specific traits.
  2. 4. A change in DNA that can create genetic variation.
  3. 5. The change in a species over time due to natural selection.
  4. 7. The physical expression of a trait in an organism.
  5. 10. A structure made of DNA that carries genetic information.
  6. 12. Having two identical alleles for a particular gene.
  7. 15. Different forms of a gene that determine traits.
  8. 18. A trait that only appears when two recessive alleles are present.
  9. 19. Differences in traits among individuals of the same species.