Final answer:
The adaptationist and selectionist framework does not suggest that all traits are adaptive, that evolution is purposeful, or that all traits are genetically determined. It acknowledges the role of random mutation in genetic variation and the non-directionality of evolutionary change.
Step-by-step explanation:
The adaptationist and selectionist framework does not assert certain misconceptions about evolution. Firstly, it does not state that all traits are adaptive. Some changes are random and may not necessarily provide a survival advantage. Secondly, evolution is not purposeful or goal-directed. It does not aim to improve species over time; rather, species adapt to their changing environment. Lastly, not all traits are genetically determined nor does evolution occur for the 'good of the individual'.
This framework recognizes that while natural selection tends to favor traits that improve reproductive success, other evolutionary forces like genetic drift and gene flow can introduce harmful alleles into a population. Furthermore, traits that are beneficial at one point can become detrimental if environmental conditions change. The process of mutation introduces new genetic variations randomly, but natural selection itself is not a random process.
Therefore, the adaptationist and selectionist framework clearly indicates that natural selection is not about producing 'perfect' organisms but about the differential reproduction of existing variations within a population.