Mrna because it is the duplicate of DNA which is the main blueprint of genetic code.
I think the correct answer would be diarrhea. It is often a result of consumption of contaminated food and drinks. And each year, it was estimated that approximately 2 million children died due to this. It is a condition where bowel movements are frequent and is in liquid form which would lead to dehydration.
Humans benefit from the domestic dog because they reduce stress, they can prevent depression, and they can improve your health. Dogs benefit from humans because they love the bond they have with their owner.