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.
Of all the cognitive biases that shape our beliefs â and through them, the character of subjective reality â the most influential is the primacy effect. It causes the first piece of evidence for a belief to be both better-remembered and weighted more heavily in judgment.