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Representative survival curves for D. radiodurans strains TNK106 ΔrecA, TNK107 ΔddrC ΔrecA, TNK108 ΔddrB ΔrecA, TNK109 ΔddrD ΔrecA, TNK110 ΔddrA ΔrecA, and TNK111 ΔpprA ΔrecA following exposure to γ-radiation. Values are the means ± standard deviations of three independent experiments. n = 9.
