I have done a couple of DNA separations and observe that the clumped strands of DNA are white.
Is that an artifact of the chemicals used in standard separations? Or is it indeed the case that the DNA molecule in standard conditions does not absorb many or any photons in the visual range?
If that is right, can we use this as evidence for why visible spectrum light doesn't cause mutations, unlike say higher energy photons in the UV range?
Looking forward to your thoughts.