A human quality is defined as something a person has that makes them human. Some examples of human qualities include the ability to ask questions, human DNA and a spoken language.
It can be argued that some animals possess human qualities. Some scientists believe, for example that dolphins have their own language. Anthropologists that have studied apes know that those animals are inquisitive, just as are humans. Neither animal, however, is as refined as their human counterparts.
The one thing that sets humans apart from animals is their DNA. The chromosomal and gene make-up of humans are the building blocks that set them apart from other animals.