Across
- 4. A physical feature, or observable trait.
- 9. A specific version of a gene for that a specific trait.
- 10. A genotype that has the identical versions of the same gene.
- 11. The passing of traits from parents to their offspring.
- 12. Two alleles need to be present for the trait to express.
- 15. How likely an event is to occur.
- 16. A type of cell division that results in two identical daughter cells.
- 17. The smallest structural and functional unit of an organism.
- 18. A self replicating material that is the carrier of genetic information.
Down
- 1. A gene combination, or two alleles that an organism has inherited for a particular gene.
- 2. A segment of one chromosome that codes for a specific trait.
- 3. DNA is tightly coiled into this structure.
- 5. Only one allele needs to be present for the trait to express.
- 6. A genotype that has two different versions of the same gene.
- 7. Monomer of DNA, consisting of a phosphate, deoxyribose sugar, and nitrogenous base.
- 8. A change in the DNA sequence of a cell, may be caused by mistakes.
- 13. A disease caused by an uncontrolled division of abnormal cells in a part of the body.
- 14. These are molecules that combine to form proteins.
- 15. Tumor suppressor gene that prevent cancer formation.