1.) heterozygous individuals display traits that are a blend of the phenotypes of two alleles 2.) alleles lie on homologous chromosomes 3.) Pairs of genes separate and end up in different gametes 4.) used to determine genotype if phenotype is know 5.) used to calculate probable ratios of genotypes 6.) the pairing of homologous chromosomes 7.) a diploid cell formed from haploid A. principle of segregation B. test cross C.Synapsis D. Punnett Square E. Zygote F. Chromosome theory G. Incomplete Dominance .