According to the U.S. Environmental Protection Agency, it can be an acute toxin causing such problems as burns and breathing difficulty. It may cause developmental effects such as birth defects and affect male and female reproductive capacity. It can also harm wildlife. A circular piece of DNA found outside the chromosome in bacteria.
Plasmids are the principle tool for inserting new genetic information into microbes or plants.
Polygalacturonase causes ripening fruit to become soft. Multiplying a particular DNA segment in repeated cycles. For example, PCR enables forensics experts to do DNA testing on very small blood samples. When purified from pituitary glands or from bacterial cultures, PST injected into hogs can increase the leanness of pork and improve pork quality. In addition, many hormones and enzymes that regulate cells are proteins.