DNA basically contains your genes. Basically, everything about you is from your DNA.
Urea can be used to denature a protein, that is, when a protein loses its structure.
Don't smoke
stay away from x rays
no excessive exercise
If one forgets about food safety it would be a disaster and can cause food poisoning. However if one would just follow the 4 simple steps one's family can be safe from food poisoning. The steps include clean, to separate, cook then chill. In this scenario, Felicia forgets the first step which is a. clean.
