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| Description: (a) An endoscopic view of the colon of someone who carries the normal alleles for the APC gene. The small number of polyps on the wall are a precursor to colon cancer. (b) Polyps in the colon of someone who carries a mutant APC allele. Hundreds of polyps are present. If a cell in one of these polyps acquires enough mutations, it will transform into a cancer cell, forming colon cancer. Picture Stats: Views: 185 Filesize: 260.92kB Height: 651 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44632 |