A mutant was a product of Davros's experiments on Necros.
Biography[]
The mutant attacked the Sixth Doctor before Peri Brown beat him repeatedly with a club-like stick to save the Doctor.
He was mortally injured but, before he died, forgave Peri and told the Doctor that the Great Healer had used him as a genetic experiment. The mutant's appearance and hostility were caused by the experiments. (TV: Revelation of the Daleks)
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