How is mitochondrial dna used in science? choose the correct answer.

a. mtdna is used to convict criminals by connecting the dna found at a crime scene to relatives on the father’s side.

b. mtdna is used to connect dna samples to the mother in missing-person cases.

c. mtdna is used to match nuclear and mitochondrial dna to victims of a crime scene.

American scientist, linus pauling, was one of many scientists racing to discover the molecular structure of dna. pauling initially thought that the molecule was a triple helix. later, james watson and francis crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape. why did watson and crick succeed when pauling failed?