Study Guide Genetics

1) What is genetics?2) Dominant and Recessive Genes3) Homozygous and Heterozygous Genes

a. Purebred: homozygous dominant Example:b. Purebred: homozygous recessive Example:c. Hybrid: heterozygous Example:

4) Number of Chromosomes ina. Human body cells:b. Human sex cells:

5) Punnett Squarea. Setting it up Example: b. Genotypic Ratio Example:c. Phenotypic Ratio Example:d. Percent of offspring Example:e. F1 and F2 generations Example:

6) Mendelian Geneticsa. Complete Dominance Ex: Genotype 1:2:1 and Phenotype 3:1b. Sex Determination male: female:

7) Non-Mendelian Geneticsa. Incomplete Dominance: Genotype 1:2:1 and Phenotype 1:2:1

Ex: Carnation flowersb. Codominance

Ex: Blood Types, some types of chickenc. Sex Linked Traits Ex: hemophilia, color blindness, sickle cell anemia