The gene for scurs is inherited separately from the
polled gene in cattle. Not all polled animals lack the scur gene. Since horned is
recessive to polled, no horned cattle carry the polled
allele, but they may also carry scurs. In
cattle, genetic expression of the scur gene is different from that of the dominant polled gene, in that the scur gene's expression depends on the sex of the animal. The scur gene is dominant in males and recessive in females. ==See also==