Page "Katherine MacLean" Paragraph 13
from
Wikipedia
:: Finding she has no chance of evading eventual death, she immediately loses her obsession with safety, becomes interested in biochemistry again, and invents a new theory.
) Mutation from background radiation does not just strike the sperm and egg making chromosome changes in the embryo and mutated progeny, it also strikes the chromosomes in each cell of any living creature, damages and mutates them also, and produces cancer.
She called it " somatic mutation " and used the new concept of body deterioration by slow radiation damage ( age ) to underpin her rediscovered recklessness, and be happy.
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