Genetics

12345678
Across
  1. 1. the process where organisms that are best suited to their environment survive and pass on their genetic traits in increasing number to successive generations
  2. 5. the physical properties of an organism, everything you can observe from how they look to how they act
  3. 7. the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
Down
  1. 2. results from a process called natural selection
  2. 3. a unit of heredity which is transferred from a parent to offspring
  3. 4. a mistake or a change in a living thing's DNA
  4. 6. Deoxyribonucleic acid
  5. 8. The version of each gene that a parent passes down to their child