So we have this circular, double stranded DNA molecule. The orange section basically describes non coding genes. But these colored regions, the blue section and the green section, describe a special gene that codes for special protein. The blue gene basically codes for protein that gives the cell the ability to resist a special type of antibiotic known as tetracycline. While the green section codes for protein that allows the cell to remain resistant to the antibiotic ampicillin. And so together, these two genes give the cell the ability to resist antibiotics.