Yes. They have spots, can be solid, or are a roaned color.
Spots or markings is a result of the DNA and breed characteristics. Holstein cattle are known for their "spots", and the DNA decides where they should go and what shape.
This question cannot be answered because it depends on the breed and no statistics have been created to count the number of cattle that have spots or speckles or patches or whatever. There are many breeds in the world that spotted or speckled cattle, including Nguni, Sanganer, Speckle Park, Corriente, Texas Longhorn, Florida Cracker/Pineywoods, Guernsey, Holstein, etc.
It is a breed of cattle. Normally white with large black spots on it. Holstein cows are frequently used for dairy products.
Bulls, like all cattle, have solid-colored coats due to their genetic makeup. Spots are a result of specific genes that cause a different distribution of pigment in the skin and hair. Bulls do not have these genes for spot patterns.
That depends on the breed. Some breeds of cattle are known to have cows (and bulls) with spots or patches, but others are selected to have no spots, no colour patterns at all.
Dalmatians and Australian Cattle Dogs are both born white, with only larger solid markings visible at birth. They also continue to "grow" new spots throughout their lifetime, so the same dog can look very different in coloration after several years. Source~ I'm the proud owner of a Texas Heeler, which is 1/2 Cattle Dog. Every so often we'll notice she has a few new red spots; this is especially apparent when looking at photographs of her throughout the years. =)
They raise cattle or beef cattle
Just like with the wild mustangs and ponies of Chincoteague Island, spotting or patchy colouration evolved through genetic mutations of the solid coat-colour allele, allowing cattle, even those in the wild, to obtain patches over their body instead of being a solid colouration. It is thought by some that it evolved through artificial selection or selective breeding so that people could get cows of this colouration for aesthetic purposes, however documented evidence of feral cattle of the wilds of the United Kingdom dating back to the 17th century stated that cattle, such as those that were created into the Aberdeen Angus breed, were patched and spotted well before people "turned" these cattle into black, solid-coloured and polled cattle we know of the Angus breed (and other breeds)today.
Riggit Galloway and Lineback cattle are both black with a white stripe down the back, although the Riggit Galloway can also be red or dun colored. Both breeds also have white along their stomachs and some Riggit Galloway have white on their faces as well.
They raise cattle or beef cattle
Salers are beef cattle.
leopard is to spots