In these cases, chimerism may manifest as the presence of two sets of DNA, or organs that do not match the DNA of the rest of the organism. In some cases, hermaphroditic characteristics, in other words, having both male and female sex organs, can be signs of chimerism.
A cognitive bias refers to a systematic pattern of deviation from norm or rationality in judgment, whereby inferences about other people and situations may be drawn in an illogical fashion. Individuals create their own subjective social reality  from their perception of the input.
Many of the biases that most of us believe are driven by limited cognitive ability are in fact driven by emotions. Here are two examples: Herding behavior is often believed to be a result of cognitive laziness. Instead of figuring out the right thing to do we choose the simpler option of following the crowd. This is a wrong explanation for this bias.