One of the microorganisms you are using in laboratory exercise 1-5 on streak plate methods is Serratia marcescens. You used that in the laboratory exercise on epidemic simulation in which some students in the class transmitted that microorganism to others on their gloves. You looked for colonies of this microorganism on your plate after it was incubated. What color of colonies do you expect to see in laboratory exercise 1-5 if you  isolate that bacterium on your plate?