Quote:
Originally Posted by jeff_wilson
If you have lots of pheomelanin for instance in all your tissues rather than just the topical layers, the rather large redundantly connected molecule can soak up some of the energy from general ionizing radiation instead of your ribosomes or chromosomes.
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That doesn't terribly matter unless you have so much of it that it functions like radiation shielding. The usual way of adding resistance to penetrating radiation is massive redundancy.