Antibodies are host proteins that are produced by the immune system in response to foreign molecules that enter the body. These foreign molecules are called antigens, and their molecular recognition by the immune system results in selective production of antibodies that are able to bind the specific antigen.his ability of animal immune systems to produce antibodies capable of binding specifically to antigens can be harnessed to manufacture probes for detection of molecules of interest in a variety of research and diagnostic applications.
Slavery took place in many places including the Southern states in the U.S. in the 1800's and before that. Slavery has taken place since human beings stopped being hunter-gatherers.
Slavery in the United States was the legal institution of human chattel slavery that existed in the United States of America in the 18th and 19th centuries after it gained independence and before the end of the American Civil War.mplemented in colonial Louisiana in 1724, Louis XIV of France 's Code Noir regulated the slave trade and the institution of slavery in the French colonies. It gave Louisiana a very different pattern of slavery compared to the rest of the United States.