a) enzymes are used to assemble an insulin gene, which is then attached to bacterial DNA. b) bacterial DNA is cut from a human DNA strand and inserted into a human cell to form an insulin gene. c) the insulin gene is cut out of a human DNA strand using an enzyme and inserted into bacterial DNA, thereby enabling the bacteria to produce a human protein. d) a gene is deleted from bacterial DNA to produce an insulin gene, which is then inserted into human DNA.

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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.