NACA Animal Control Officers Test 2025 – 400 Free Practice Questions to Pass the Exam

The characterizing color pattern of calico cats is indeed defined by a combination of tortoiseshell colors—primarily orange (or cream) and black (or brown)—with the addition of large patches of white. This unique pattern occurs due to the genetic makeup of calico cats, which are typically female and possess two different color genes on the X chromosomes. The presence of white patches creates a distinct and visually striking look, setting calico cats apart from other color patterns.

While various color patterns may be present in other cats, such as a uniform appearance or random color distribution, these do not fit the specific definition of a calico. For instance, a uniform black and white pattern lacks the distinct coloration found in calicos, and only shades of gray do not encompass the required genetic markers. Thus, the defining feature of calico cats rests in their distinctive tortoiseshell mix along with generous white patches, making option C accurate in describing their appearance.