How to pronounce “excision” in English

If it couldn't do it, you'd have cancer. Skin cancer, eye cancer, all that stuff. That's the two-hit theory of cancer. You can't repair the second hit. You can't repair the hit thatoccurred with the first. So, you have these systems in place called DNA polymerase, nucleotide excision repair, DNA mismatch repair, and they take the dents out of your DNA everyday. OK? And there's some mice that you can knock out some of these genes that control these things, mismatch repair genes, and you can make them and make transgenic mice and you