As you can see, the ISTP personality tends to be Introverted, Sensing, Thinking and Perceiving. Introversion (I): How you direct your energy and relate to the world around you. ISTPs tend to be quiet and reserved.
This RNA copy, or transcript of the DNA's information is called an mRNA. The m stands for messenger, because the function of mRNA is to carry the DNA's information out of the nucleus and into the cytoplasm to make proteins. This allows the precious DNA, the master copy of the info the cell needs to live, to stay safe inside the nucleus which helps protect it from damage.
The main function of mRNA is to carry the genetic information from the chromosomal DNA to the cytoplasm for the synthesis of proteins. This is the reason why Jacob and Monad named this kind of RNA as messenger RNA in 1961. The lifespan of mRNA in the prokaryotic cells is very short.