Chondrodysplasia (short legs) — inherited via the Munchkin side
The short-legged 'Standard' Minuet carries the same dominant Munchkin leg-shortening gene, with the same lethal-when-homozygous inheritance; the long-legged 'Nonstandard'/'Talls' Minuet does not have short legs but can still carry and pass on the gene. The welfare question this raises (see the Munchkin entry in this dataset) applies equally here.
What to ask for
No DNA test exists for this gene. Leg length is visually obvious; ask whether the cat is Standard (short-legged) or Nonstandard/Talls, and, for Standards, ask about the breeding cat's joint health.

