Both.
Polled. The dominant polled characteristics come from the Red Poll breed that is infused into this breed to make it the Senepol breed.
They can be both. But most are normally horned due to breed characteristics and buyers preference. In the show ring they prefer bulls to be horned while heifers and cows should be polled or have there horns removed.
Polled.
There really isn't much of an obvious difference, except Herefords are a horned breed and Polled Herefords are bred to be naturally polled or hornless. Some of the Hereford breeders will tell you that the horned Herefords have more depth and are a little larger than the polled Herefords, but when a novice looks at a horned Hereford and a polled Hereford side-by-side, he will see no other obvious differences.
Polled.
Charbrays can be both horned or polled, or even scurred.
Horned.
Amerifax cattle are predominantly polled.
Almost all breeds of cattle are born with buds, the ability to grow horns. The horns are almost always removed at a young age. Sometimes farmers allow the cattle to grow horns, depending on what breed they're raising. A few breeds have been developed in which the offspring are polled, that is, do not have the ability to grow horns. Holsteins are naturally horned, so their horns need to be trimmed or cut before their horns get too big, which is when they are a few months old if horn buds can be seen or felt. However, other cows can be born polled or hornless and do not need to have their horns trimmed. Horns is a recessive gene in cattle, so if a horned cow mates with a polled bull, the offspring will be polled. But mating horned with horned produces horned offspring, or hetero polled with hetero polled have a 25% chance of producing horned offspring. The naturally polled breeds of cattle include Angus, Red Angus, Brangus, Red Brangus and Galloway.
Limousin cattle are both horned and polled depending on genetics. Horned tends to be more prevalent, but it is not uncommon to see French breeders that have polled Limousin cattle. Polled Limousin are most common in North America.
Yes, the offspring has a 50% chance of being polled. The polled gene is dominant over the horned gene, so if the bull does not carry the horned gene, the offspring will not have horns.
They can be both, though historically they were primarily horned.