Matching Pairs 9.1 Mendel LawsOnline version Relation of Mendel's laws of inheritance by Jorge Arizpe 1 Law of Dominance: A dominant gene determines the expression of a particular characteristic and prevents the expression of the recessive form of the gene. 2 They are the nucleotides of which the DNA is formed 3 Chromatide: Filament that constitutes the chromosomes, visible during the prophase and metaphase 4 Law of independent segregation: During the formation of gametes a random distribution of alleles occurs. Different alleles separate independently. 5 Deoxyribonucleic acid, constituent of the genetic material. 6 Chromosome: consists of hundreds of genes; humans have 23 pairs. 7 Law of segregation: during meiosis the two alleles of each feature are separated.