Across
- 3. uses the decay of radioactive isotopes to measure the age of a rock
- 8. a group of individuals of the same species that can interbreed
- 9. a change when only a few move to new area and become the dominant allele for that population
- 10. describes all the genes and their alleles in a population
Down
- 1. any change in a sequence of DNA
- 2. type of selection in which one end of the bell-curve has a higher fitness
- 4. structures that are similar in function but different in built.
- 5. structures that similar in built but different in function
- 6. a type of trait controlled by 2 or more genes and forms many phenotypes
- 7. formation of a new species