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Questions and Answers
Which of the following is the main reason why mitochondrial DNA acquires mutations at a higher rate than nuclear DNA?
Which of the following is the main reason why mitochondrial DNA acquires mutations at a higher rate than nuclear DNA?
- It is in close proximity to the electron transport chain. (correct)
- It lacks DNA repair mechanisms.
- It is exposed to high concentrations of free radicals.
- It lacks protective histones.
What is the standard model of inheritance for mitochondrial DNA?
What is the standard model of inheritance for mitochondrial DNA?
- Biparental inheritance
- Maternal inheritance (correct)
- Paternal inheritance
- Random inheritance
Which tissue showed evidence of a single, maternally derived mtDNA haplotype in a patient with mitochondrial myopathy?
Which tissue showed evidence of a single, maternally derived mtDNA haplotype in a patient with mitochondrial myopathy?
- Cardiac muscle
- Skeletal muscle (correct)
- Brain
- Liver
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