Genetic polymorphisms in blood serum transferrin and certain milk proteins of the cow.

Reports on inherited differences in certain proteins between individuals within species have appeared in the literature with increasing frequency during the past few years. These inherited differences, generally referred to as genetic polymorphisms, were discovered when techniques became available which could detect hitherto unknown small chemical differences in proteins. These genetic polymorphisms are usually caused by the action of allelic genes, and several substances with genetically controlled alternative forms have been found in numerous species. [...