2) Myoclonal epilepsy and ragged red fiber disease (MERRF) is a human condition named for the ragged red fibers of skeletal muscle cells and myoclinic epilepsy in affected individuals. People with this disorder have a mutation in a mitochondrial gene for a tRNA, specfically that for lysine. Why are affected individuals always heteroplasmic?

Human Heredity: Principles and Issues (MindTap Course List)
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Chapter10: From Proteins To Phenotypes
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Problem 20QP: If an extra nucleotide is inserted in the first exon of the beta globin gene, what effect will it...
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2) Myoclonal epilepsy and ragged red fiber disease (MERRF) is a human condition named for the ragged red fibers of skeletal muscle cells and myoclinic epilepsy in affected individuals. People with this disorder have a mutation in a mitochondrial gene for a tRNA, specfically that for lysine. Why are affected individuals always heteroplasmic? 

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