Genetics definitions 1 2 3 1 + 2 Label each chromosome pair as homozygous dominant, homozygous recessive, or heterozygous with definitions Label dominant and recessive alleles with definitions Complete punnet square with offspring genotype and phenotype ratio 1 + 2 Genotype ratios ----------------------------------------------------------------------------------------------- Phenotype ratios ---------------- ------------------------------------------------------------------------------ 2 + 3 Genotype ratios ----------------------------------------------------------------------------------------------- Phenotype ratios ----------------- -----------------------------------------------------------------------------