Joe has a white cat named Sam. When Joe crosses Sam with a black cat, he obtains 1⁄2 white kittens and 1⁄2 black kittens. When the black kittens are interbred, all the kittens that they produce are black. On the basis of these results, which coat color (white or black) in cats would you conclude is a recessive trait? Explain your reasoning and provide your Punnett square.

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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.