Problems...
If we apply this definition to the study of humans, we can note a number of problems:
a. People always have a choice
about how to behave. For example:
We could, of course, argue that people who choose to do these things are somehow different, but genetically this is not the case. Every single human being has the same basic genetic code (which, incidentally, is why it is possible to a human male to successfully breed with any other human female - a polar bear could not breed successfully with a gorilla because they do not share a common genetic identity).
b. The meaning of behaviour is culturally defined.
Taking the sociology of deviance as an example, it is clear that even such an extreme example as the killing of another human being can be open to a number of different cultural interpretations.
c. Is behaviour, as opposed to physical characteristics, inherited?
Although it is clear that physical characteristics (such as hair and eye colour) are genetically-inherited, the evidence that the same is true for behavioural characteristics is by no-means as clear-cut. Although there have been various suggestions that behaviour such as heterosexuality / homosexuality or a predisposition to commit crimes have a genetic basis, the evidence for this is, at best, inconclusive (and, at worst, poorly-constructed research).
d. Even in situations where extensive genetic research has been undertaken into the influence of genes (such as the relationship between "intelligence" (IQ) and educational achievement), the evidence to show that "inherited intelligence" either exists (which is by no means certain) or influences social behaviour is problematic at best.