Mendel went on to study how multiple traits are inherited. For example, he studied plants that had different seed color and seed texture and how those traits passed to the next generation. Tracing two traits at a time helped him formulate the law of independent assortment. This law posits that two alleles for any given trait will segregate independently from any other alleles when passed on to gametes. Consequently, each gamete may acquire any possible allele combination and traits.