Everyone in Merida's family has orange hair, which is the dominant trait for hair color in her kingdom. Her family brags that they are a "purebred" line. She recently married a man who has light yellow hair, which is a recessive trait. Create a Punnett square to show the possibilities that would result if they had children. Use H to represent the dominant gene andb to represent the recessive gene. List the possible genotypes and phenotypes for their children. What are the chances of a child with orange hair? What are the chances of a child with yellow hair? Would Merida's children still be considered purebreds? Explain!

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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.