text: Yo, check it out, listen up, I got a story to tell,
  'Bout mitochondrial DNA, it's a cause of disease, oh well,
  It's common, inherited, messin' with our health,
  Affects the young and the old, it's bad for yourself.
  
  See, mtDNA, it's encoded, it's essential, you know,
  For the respiratory chain, the energy it bestows,
  But when there's defects, man, it's a sad sight,
  Oxidative phosphorylation, it can't function right.
  
  Neurodegenerative conditions, they're in the mix,
  Parkinson's disease, man, it's a tricky fix,
  Ageing humans, too, feel the impact,
  OXPHOS defects, it's a natural fact.
  
  But that ain't all, tumors also play a role,
  With mtDNA mutations, they take a toll,
  Messed up metabolism, they got a different style,
  In this review, we break it down, mile by mile.
  
  We'll talk about mitochondrial genetics, so unique,
  Then dive into the pathology, it's what we seek,
  Adult neurological disease, we'll give it a shout,
  And how mtDNA mutations, they spread about.
  
  Neurodegenerative diseases, they ain't a joke,
  Ageing and cancer, they're all part of the yoke,
  So pay attention, fam, to this rap review,
  Mitochondrial DNA, it affects me and you.