1. Name Date Period Chapter 16 Evolution of Population s Take notes here Summary – one summary at the end Questions “Cornell Style”

2.  A Mutation is any change in DNA  A mutation can change the phenotype and fitness of an organism  Fitness – an organisms ability to survive and reproduce. Genetic Variation

3. Mutations  Sex cell mutation – occur in sex cells (gametes), don’t affect organism but can be passed on.  Somatic mutation – occur in body cells, skin cancer and leukemia, not passed on.  Lethal mutation – cause death usually before birth

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6. Summary of Mutations

7. Chromosome Mutations What type of mutation is shown?

8. Chromosome Mutations What type of mutation is shown?

9. 1. Speciation – when similar organisms become separated and will no longer interbreed.  Species -- The ability to reproduce and have viable offspring.

10. 1. Behavioral Isolation  Different courtship rituals or other types of behaviors. Isolation

11. 2. Geographic Isolation  When a deep canyon or river splits a population stopping gene flow.

12. 3. Temporal Isolation  Two or more species reproduce at different times.

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14. Mule Male donkey and female horse

15. Liger Male lion & female tiger. Can weigh up to 800 lbs.

16. Write a 2 sentence summary about the notes. NOT what you learned or how you feel!