You Just Isolated a New Strain of Mutant Mice,and Preliminary

Essay

You just isolated a new strain of mutant mice,and preliminary matings suggest that the new mutant phenotype is not inherited autosomally.Circumstantial evidence seems to indicate that the mutant phenotype may be following either an X-linked dominant or a mitochondrial-type inheritance pattern.
a)What informative crosses would you set up to distinguish between these two possibilities?
b)How would you interpret your results?