As the age of an individual increases, which of the following phenomenon has greater chance of occurring (as compared with a younger individual)? More crossing over, less nondisjunction More nondisjunction, less crossing over Both nondisjunction and crossing over will increase with age Both nondisjunction and crossing over will decrease with age

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A:

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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.