After much work the researcher maps the mutation in the mut1 plant to a locus on chromosome 2.  The gene associated with the mut1 mutation is called COB1 (i.e. mutations in COB1 cause the mut1 phenotype.) The researcher extracts DNA and RNA from developing ears of wild type, mut1 and mut2 plants.  From the DNA samples COB1 PCR primers are used to amplify the coding region of the COB1 gene (see DNA gel below).  An RNA gel is used to examine the expression of COB1 all three plants (see RNA gel below).  results in photo: Which of the following is TRUE about the COB1 gene.  a. There is a deletion in the COB1 gene in the mut1 plants. b. COB1 is not transcribed in the mut2 plant. c. There is a deletion in the COB1 gene in the mut2 plants. d. COB1 is not transcribed in the mut1 plant.

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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.