50 points please help, will give brainliest Fill in the blanks in the following paragraph:
The lac operon genes are a series of 3 genes used to create enzymes to digest the sugar . When lactose is NOT present a protein is attached to the promotor site, preventing from binding to the promotor site, and transcribing the DNA. This protein is also needs factors, which are a group of proteins which regulate transcription of genes. When lactose IS present, the protein falls off and binds to the promotor, initiating transcription.