She arranged for tissue samples from the 4 affected dogs to be examined by the University of California, Davis Neuromuscular Lab and although they originally diagnosed 4
different types of muscular dystrophy, this was viewed with skepticism as 4 types would be highly unlikely (especially since 1 affected dog was a female and true muscular dystrophy does not affect females).
And Crispr - Cas9 isn't even the only
type of Crispr out there: On April 12, researchers at the University
of Texas Southwestern Medical Center announced they had successfully paired the gene - editing tool with a
different kind
of enzyme, called Cpf1, to correct mutations associated with the devastating muscle - wasting disorder Duchenne
muscular dystrophy.