1.all living things are made up of cells
2.Cells are the smallest units of life
3.all cells come from preexisting cell though the process of cell division
This should be the correct answer
Do you mean when nucleotides get damaged or when they match to each other incoreectly? (which cuases mutants) Specialized Enzymes repair, different one respond to help different types of damage. Detail the question more, maybe then i can help more.
