Across
- 2. A genetic trait that an ancestor passes on to its descendants
- 5. When the two alleles are alike (AA or aa)
- 6. The range of expression of a trait within a population
- 12. A structure made of coiled DNA that transfers hereditary information to the next generation
- 13. genetic makeup of an organism
- 14. a diagram showing the lineage of an individual and all the direct ancestors, usually to analyze the inheritance of a trait
- 15. Different characteristics of a feature, such as eye color or hair color
- 16. variations of genes that determine traits in organisms
Down
- 1. When the two alleles are different (Aa)
- 3. The alleles are neither dominant or recessive. Both Alleles are expressed in the offspring
- 4. Contains an organism's genetic information and makes up chromosomes
- 7. the trait that is masked when a the dominant allele is present
- 8. physical appearance of a trait
- 9. A sequence of DNA that codes for a protein which determines the trait
- 10. the trait that is always expressed when that allele is present
- 11. study of heredity, or the passing on of traits from an organism to its offspring