It is extremely unlikely that DNA plays any part at all in either morphogenesis or evolution. Inheritance of traits is via an electromagnetic bio-field and evolution is driven by cognitive processes. The best guess so far for the function of DNA is a simple buffer to aid energy regulation.
The exact ordering of base pairs on a DNA strand appears to have little to do with morphogenesis or the inheritance of traits. Inheritance is via the bio-field.
An informational theoretical argument is given against the possibility of DNA containing a blueprint for life.
Traits can be inherited even though no DNA has been transmitted.
The DNA shape arises naturally as some sort of spiral ‘field’ structure as is evident from images of clouds of water in our atmosphere and of plasma in space.
In order to explain the process of human evolution we need first to describe that which we are trying to explain, i.e. what it is that is evolving and which features of this need explaining.
The later stages of evolution are driven by the cognitive processes of the organism itself in response to environmental pressures.