An attempt to disprove polygenic inheritance might involve the discoveries made by Gregor Mendel in his experiment on pea plants. Critics might argue that since Mendel had discovered the law of independent assortment, stating that one allele is inherited from each parent, and this is the source of inheritance of traits from parent to offspring, there cannot be multiple alleles influencing one treatment. However, Mendel only studied specific, simple traits of pea plants, and his results cannot be applied to complex human traits such as skin..