You are building a lego model of DNA. So far you decided. . . A red lego will represent adenine (A). A green lego will represent
guanine (G). An orange lego will represent thymine (T). A blue lego will represent cytosine (C). If you use 30 red legos in your DNA, you will also use 30 legos of which color? - Red
There are thousands of bacterial species and they are not identical towards one another, therefore there forms are quite unique. so its just there characteristics that make up how bacteria look like. Hope this answers your question.