D A mutation in the Pitx1 gene prevents normal hindlimb formation in mouse embryos. Analyses of the presence and length of the gene, its mRNA transcript, and the protein produced show the following results: DNA sequence: normal length mRNA: present, normal length protein: present, shorter than normal Which of the following is the most likely explanation for the mutation? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. The mutation removes a transcription factor binding site in a cis-regulatory region of Pitx1. a с It is a nonsense mutation in the Pitx1 coding region that changes a codon for an amino acid into a stop codon. It is a missense mutation in the Pitx1 coding region that changes a single amino acid. d It is a mutation in an enhancer that prevents a transcription factor from binding.

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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.