Fish, reptiles, amphibians, reptiles and mammals
The cells would cease to function <span>after a relatively short amount of time (a few years at best, depending on the amount of cells that part normally has). A living being's body parts would also never grow. They would stay the same size since they were born. The only good result is that without mitosis, cancer wouldn't occur.</span>
Collagen is a substance that is made up of amino acid linked together to form long, branched polypetide (tertiary protein chains). Thus COLLAGEN is the protein.