2.9 A dominant gene in Ayrshire cattle controls the presence of notch in the tips of the ears. In the pedigree below, the shaded areas represent notched individuals. I || 2.9.1 2.9.2 1 (a) 1112 x 1113 (b) 1112 x 1115. 2 2 O 3 3 2 4 5 4 6 5 By using your own symbols, determine the genotypes for all the individuals in the pedigree shown. Determine the probability of getting notched progeny from the crosses between:

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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.