$500 Bill. The Treasury minted several versions of the $500 bill, featuring a portrait of President William McKinley on the front. The last $500 bill rolled off the presses in 1945, and was formally discontinued 24 years later in 1969. Like all the bills featured here, the $500 bill remains legal tender.
Confidence votes 21. Selective breeding has been a way of enhancing preferable genetic qualities in mainly dogs, cats and horses. Often the results can cause mild to severe problems.For example ;breeding for the flat face of the pekingese can cause breathing problems and jaw and teeth deformities.ften the results can cause mild to severe problems.For example ;breeding for the flat face of the pekingese can cause breathing problems and jaw and teeth deformities.
Such types of mutations are also called as mosaicism. Here are some diseases which are caused by gene mutations:- 1)Cystic Fibrosis:- Cystic fibrosis is a single gene mutation. This disease is related with secretory glands of the body like sweat and mucus.This is a hereditary disease.ere are some diseases which are caused by gene mutations:- 1)Cystic Fibrosis:- Cystic fibrosis is a single gene mutation. This disease is related with secretory glands of the body like sweat and mucus. This is a hereditary disease.