Answer:
cell membrane is the answer
the insertion on removal of mutations are dangerous in nature. the process is basically just one large gamble to see what it does. and even though we have a decent understanding of the genomes of many animals and plants, we still dont know everything. so if we tamper with certain genes we may cause a evolution or we might kill the subject and the potential for it to procreate.
The other answer is wrong. It would be pollution. Hope this helps you!
Ok mauguguv is there a lot more and more than a few minutes later I can have
