You're studying two species of closely related mice. One has a lifespan of 32 weeks, on average; the other can live for up to 3 years (~150 weeks). You generate F1 hybrids and then an F2 mapping population for a QTL mapping study. Most of the difference in lifespan maps to a single genomic region. Which of the following is the most likely to be a good candidate region in this QTL region? 1.) Histone methyltransferase 2.) DNA ligase 3.)Primase 4.) Aminoacyl t-RNA synthetase 5.) Telomerase

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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.