We are not single celled organisms and multiple cell divisions occur between fertilization and production of gametes. In males there are an estimated 400 divisions before production of gametes and in females about 30 divisions. Can you think of why this is? Is a new mutation arising from DNA replication more likely to occur because of errors in the male or the female germline?

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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.