Across
- 3. What DNA is made of.
- 4. When a trait is able to be passed from parent to offspring (from today).
- 6. An exchange of one letter on the genetic code for another
- 7. A sudden change in a gene, trait or segment of DNA.
- 8. Subtraction of one letter on the genetic code
- 9. these features support successful survival and reproduction in the new environment become more common; those that do not become less common
- 10. A unit of heredity
Down
- 1. The ability to develop an immunity to a chemical from a mutation.
- 2. An addition of one letter on the genetic code.
- 5. One base is changed to a different base. It may or may not affect the amino acid