28) In negative control, a gene is switched off when _____. A) a kinase adds a phosphate to DNA B) lactose is transported into the cell C) a regulatory protein binds to DNA and shuts...

28) In negative control, a gene is switched off when _____.

A) a kinase adds a phosphate to DNA

B) lactose is transported into the cell

C) a regulatory protein binds to DNA and shuts down transcription

D) a regulatory protein is removed from DNA and shuts down transcription