What is the name for dna segments transcribed into mrna and coded for specific amino acids?

The segments of the DNA that are transcribed into mRNA and are used to produce amino acids are called EXONS. This segments are coding regions. In the transcription process, the non-coding regions are removed and the only segments that remain are the coding regions. The exons are used to produce amino acids.

This type of galaxy is an approximately ellipsoidal shape and a smooth, nearly featureless image. they are the largest single star systems, in the universe and are built by the collisions of many smaller galaxies.