1. Genetics College Biology

2. Gregor Mendel Mid 1800’s, Austrian monk. Introduced probability to genetics Mated pea plants

5. Cross-pollination Produce seeds that have two different plants as parents

6. Traits Specific characteristic

7. Genes Chemical factors that determine traits

8. Alleles Different forms of the gene

9. The Principle of Dominance States that some alleles are dominant and others are recessive.

10. Law of Segregation Alleles for each trait are segregated from each other during the formation of sex cells, gametes.

11. Probability Likelihood that a particular event will occur.

12. Punnett Squares Used to predict and compare the genetic variations that will result from a cross

13. Homozygous Two identical alleles - Dominant: TT - Recessive: tt

14. Heterozygous Two different alleles

15. Phenotype Physical characteristics

16. Genotype Genetic makeup

17. Law of Independent Assortment Genes of different traits can segregate independently of each other Dihybrid cross

18. Incomplete Dominance Heterozygous phenotypes are a mix of the two homozygous parents

19. Codominance Both alleles contribute to the phenotype

20. Multiple Alleles: more than two alleles

21. Polygenic Traits Having many genes that determine a trait Skin color, eye color