36 The diagram below represents a cell containing a pair of chromosomes at metaphase I of meiosis. The individual is a heterozygote for two tightly linked genes, gene A and gene B. a b А В If a crossing over event occurred between alleles A and B in the cell shown above, what are the genotypes of the two possible recombinant gametes? Select one alternative: O aA bB O AB аВ Ab O AB ab

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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.