From: Arachnomelia syndrome in Simmental cattle is caused by a homozygous 2-bp deletion in the molybdenum cofactor synthesis step 1 gene (MOCS1)
wt/wt
wt/del
del/del
Affected calves†
0
154
Carriers
2*
219
Unrelated Simmental cattle
599
17
Cattle from four other breeds
241
Total
843
236