(2) Based on (1), what amino acids on DNA-binding proteins might contribute to the strong interactions between DNA molecules and the DNA-binding proteins? (6%)

6. Particulate matter (PM) pollution is a serious problem in environmental medicine. What are the definitions of PM10, PM2.5 and PM1.0? What are the compositions of these PMs? How PM10, PM2.5 and PM1.0 affect people's health? What are the relationship between these PMs and lung cancer and cardiovascular disease? (10%)