Across
- 2. a genotype in which the two alleles of a gene are the same
- 3. a model that is used to show the probability of all possible genotypes and phenotypes of offspring
- 6. something that affects the characteristics of an organism
- 8. traits that are passed from parent to offspring
- 9. the measure of likelihood that a trait will be expressed in an organism
- 11. scientist known as the father of genetics
- 13. section of DNA on a chromosome that has genetic information for one trait
- 14. passing of traits from parents to offspring
- 16. study of how traits are passed from parents to offspring
- 18. threadlike structures made of protein and a single molecule of DNA that carry an organism's genetic information
- 19. the genetic material of an organism (deoxyribonucleic acid)
- 20. permanent change in the sequence of DNA in a gene or a chromosome
- 21. a genotype in which the two alleles of a gene are different
- 22. how a trait appears or are expressed
Down
- 1. genetic factor that blocks another genetic factor
- 4. a different form of a gene
- 5. product of reproductive cells coming together to form a new organism
- 7. traits that develop as a result of an organism's environment
- 10. A genetic factor that is blocked by the presence of a dominant factor
- 12. the alleles of all the genes on an organism's chromosomes; controls the phenotype
- 15. process by which organisms replicate themselves
- 17. cells that carry DNA