Two women have just undergone different types of mutations without them being aware of it. Kim has just had a mutation in the DNA of her sex cells. Holly has had a mutation in her body cells. Both mutations would be able to be discovered if they happen to go to a doctor, and the doctor knows to look for it, but that is unlikely since the women are unaware these changes happened. Whose mutation is less likely to cause cancer?
Ans: Kim

Two neighboring cities had very different health related problems. Twin city had increased air pollution, their people experiencing all kinds of respiratory diseases, while Pine city had problems with age related diseases. Which city had more people exposed to outdoor pollution?
Ans: Twin

Bob and Andy are two microbiologists. They are studying bacteria: Bob studies nitrogen fixating bacteria, while Andy studies non-respiratory and facultative anaerobes. Which researcher learned less about sulfate reduction?
Ans: Andy

Two sisters Mary and Beth were into sciences. Beth studied physics, while Mary studied chemistry and especially alkanes. They were very devoted to studying. Which sister studied more about the chemical formulas and properties of small alkanes?
Ans: Mary