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Br J Ophthalmol 2002;86:949 doi:10.1136/bjo.86.9.949
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Genetic background affects expression of a mitochondrial mutation

New evidence from an in vivo study supports the hypothesis that the genetic background of specific tissues can influence expression of a maternally inherited mutation causing blindness. The study was performed in a family of four harbouring point mutation G3460A in mitochondrial DNA (mDNA), which had resulted in Leber's hereditary …

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