Across
- 3. a _____________ mutation increases an organisms ability to survive/reproduce
- 6. the instructions for life
- 8. the physical characteristics of an organism
- 10. a _____________ mutation does not affect an organisms ability to survive/reproduce
- 11. the passing down of traits from parent to offspring
- 13. the genes an organism carries (represented by two letters)
- 15. having two of the same allele (longer word)
- 16. having two different alleles (longer word)
- 17. a _____________ mutation decreases an organisms ability to survive/reproduce
Down
- 1. the different forms of a gene
- 2. the weaker gene that can be hidden
- 4. the stronger gene
- 5. a ______________ adaptation is a physical characteristic that helps an organism
- 7. a trait that makes it more likely for MANY organisms to survive and/or reproduce in their environment
- 9. the study of heredity
- 12. a ______________ adaptation is an action that helps an organism
- 13. a piece of DNA that codes for a trait
- 14. a permanent change in DNA
