Problem:
Question 1: What properties would you expect for a mutant deficient in photoreactivation compared to a mutant deficient in all of the UV repair systems ?
Question 2: Serratia marcescens makes brick red colored colonies when incubated at room temperature but sometimes rare colonies appear white colored this occurs more often after UV irradiation what is the most likely explanation for this result?
Please can anyone help me to answer these question in detail.