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Radiation sensitivity of chk2, p53, and H99/+ mutants. Ninety-six- to 120-hr-old third-instar larvae were irradiated with 4,000 R of x-rays. The number of empty and full pupae cases was scored for up to 10 days after irradiation. Eclosion is the number of empty pupae cases expressed as a percentage of total pupae formed. All irradiated larvae formed pupae in these experiments.
