Answer:
The air is really a mixture of many different gases, and each gas has its own properties. The composition of air is not constant. It can vary from time to time and place to place.
You do have an wonderful theory, but what if they already found the cure for cancer cells? but wont tell us because the government wants us to believe there isnt none so that they can either use it on themselves or wait for the future atleast a million people die from cancer everyday but how come they havent "supposedly" found a cure yet?
Answer:
DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.