Video Transcript. My name is Michael and I'm an artist. And I'm going to show you how to draw a husky. You want to start with the ears. Huskies have very alert ears, very tall ears. So, you want to start with the ear. And do the back and do the other ear. The ear is always kind of up tall. Then you start with the face.
Operon. Definition. noun, plural: operons. A group of genes or a segment of DNA that functions as a single transcription unit. It is comprised of an operator, a promoter, and one or more structural genes that are transcribed into one polycistronic mRNA.peron. Definition. noun, plural: operons. A group of genes or a segment of DNA that functions as a single transcription unit. It is comprised of an operator, a promoter, and one or more structural genes that are transcribed into one polycistronic mRNA.
Groups of genes coding for related proteins are arranged in units known as operons. An operon consists of an operator, promoter, regulator, and structural genes. The regulator gene codes for a repressor protein that binds to the operator, obstructing the promoter (thus, transcription) of the structural genes. The regulator does not have to be adjacent to other genes in the operon. If the repressor protein is removed, transcription may occur.