Why are there no humans with monosomy 22? because chromosome 22 is very small, it is very stable and never experiences nondisjunction because there are some genes on chromosome 22 that require more than one copy per cell in order to express enough protein to carry out their essential function because humans don't have 22 chromosomes there ARE humans with monosomy 22

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A: Drosophila melanogaster It is a fruit fly.

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Q: Mutation

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Q: None

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.