Deoxyribonucleic acid (DNA) is a molecule that encodes an organism's genetic blueprint. In other words, DNA contains all of the information required to build and maintain an organism.
Chattel slavery, also called traditional slavery, is so named because people are treated as the chattel (personal property) of the owner and are bought and sold as if they were commodities. It is the least prevalent form of slavery in the world today.
Primitive communism, chattel slavery, serf slavery, and wage slavery were necessary stepping-stones in the evolution of society. They have purchased your slave judges, they have debauched your slave legislatures, and they have forced to worse horrors than chattel slavery your slave boys and girls.