Mutation with magnetic field reversals

[chicken_boy]

Would the incidence of mutations increase substantially during times of magnetic pole shifts? The unstable Van Allen belts then might allow more radiation to reach the Earth, causing periods of accelerated genetic evolution. Likewise, do magnetic field reversals correspond to times of speciation, or vice versa?

[MrMistery]

Since the magentic poles directly influence the flow of UV light, it might be possible for mutations to arrise in such a situation. and electromagnetic radiation is regarded as a prime source of mutation- physical mutation factor; ionising radiation...
So, YES