If you answered yes, then that acknowledgement is a good thing. Recognizing your racial stereotypes is the first step to overcoming them. Racial stereotypes are automatic and exaggerated mental pictures that are held about all members of a particular racial group. When people are stereotyped based on race, individual differences aren't taken into account. Because racial stereotypes are so rigid, people tend to ignore or discard any information that is not consistent with the stereotype that has been developed about the racial group.
Racial stereotypes develop in a variety of ways.
On a very simplistic level, it's human nature to categorize people. It's one way of making a complex world simpler. From an early age, one learns to place people and objects into categories. However, when very young, people tend to put less of an emphasis on attributing values to these categories. Additionally, the less contact people have with a particular racial group, the more likely they will have negative feelings about the group.