Eye twitching, eyelid spasm and blepharospasm are terms used to refer to any of three separate conditions. They each have different causes, and one doesn't lead to the other. Eyelid twitching (myokymia) affects only the eyelid. It can involve either the upper or lower lid, but only one eye at a time. The eye twitching can range from barely noticeable to bothersome.
Recombinant DNA technology involves introducing genes from one organism into another organism. Scientists rely on this technology to produce the drug insulin, which people with diabetes need to manage their blood sugar levels. In the late 1970s, scientists figured out which human gene codes for the protein insulin. They were able to take the gene out of human DNA and insert it into a special type of bacterial DNA called a plasmid. Scientists then grew large cultures of the bacteria with the insulin gene, and the bacteria produced large quantities of insulin.
Recombinant DNA is one of the core techniques of genetic engineering. It is the process of removing DNA from one organism and inserting it into the DNA of another organism, giving it new traits. Recombinant DNA can be used to make crops resistant to pests or disease, it can be used to make livestock leaner or larger.In medicine, the technique can be used to develop drugs, vaccines, and to reproduce important human hormones and proteins.By engineering human DNA into a host organism, that organism can be turned into a factory for important medical products. Insulin production is an excellent example of the recombinant DNA process.n medicine, the technique can be used to develop drugs, vaccines, and to reproduce important human hormones and proteins. By engineering human DNA into a host organism, that organism can be turned into a factory for important medical products. Insulin production is an excellent example of the recombinant DNA process.