What characteristic is common among marked breeds?

Marked breeds of rabbits are identified by their unique and often distinct color patterns that set them apart from other breeds. These patterns are typically made up of different colors and markings that create recognizable designs like spots, patches, or bands. This distinctiveness in color and pattern is a defining feature of marked breeds, making them visually appealing and easily identifiable.

Uniform color, large size, and long ears do not accurately characterize marked breeds as a whole because these traits apply to various breeds regardless of their marking patterns. For instance, some breeds may have a uniform color but lack distinct markings, while others may vary significantly in size and ear length, yet still possess marked patterns. Therefore, the unique color patterns are the common thread that defines marked breeds.