1.explain why increasing the amounts of two enzymes changed the life spans of the mice
2. express your opinion about whether people should be engineered to have high levels of two enzyme. should people have option to do this is is they would like? should parents be allowed to have it done in their children? is it ok to do it to stop cancer but not ok to do it to stop again?

1.The two enzymes p53 and Arf were injected with a genetically engineered technique and made the mice live longer than a normal mouse.

2. No, i don't think people should be able to be engineered to have high levels of the two enzymes unless it is for curing cancer. I don't think anyone should live forever even though I would like too, I don't think it would be a good idea. If everyone started living forever we would be increasing the amount of produce and resources we use up. There for most of the age-less will die from starvation (over-population). No, it should definitely not be allowed to happen in children, But if this does ever happen it should be like after your 22 years old. I know death is scary and we would all like to avoid it, but it would be in best interest for future generations that we did not live forever.

I hope that this is the answer that you were looking for and it has helped you.