Across
- 3. trait that allows a plant, animal, or other organism to survive and reproduce in its environment
- 11. a pair of different alleles (Rr)
- 12. the process where organisms that are best suited to their environment survive and pass on their genetic traits in increasing number to successive generations
- 13. refers to the genetic characteristics of an organism (pair of alleles) Ex: BB, Bb, bb
- 14. the natural differences in traits among species
- 15. structure found in the nucleus of most living cells, carrying genetic information (DNA) in the form of genes
Down
- 1. a change in the structure of a gene resulting in a variant form that may be transmitted to following generations
- 2. a chart drawn to predict the possible offspring of two parents will be
- 4. refers to the physical expression of characteristics (Ex: brown eyes, blue eyes, etc.)
- 5. a specific form of a gene (ex. one from each parent)
- 6. the male or female reproductive cell that contains half the genetic material of the organism
- 7. only expressed when no dominant genes are present
- 8. a pair of identical alleles (RR or rr)
- 9. always expressed when present
- 10. a portion of DNA that determines a certain trait