[dooglius]

Is there evidence for this? My mental model has been that DNA encodes more along the lines of hyperparameters: amount of gray matter vs white matter, locations of brain regions and folds, etc, but the connections between neurons, and their weights, were all learned. There isn't that much information you can stuff into DNA, after all.

[YinLuck-]

Connections between neurons, the synapses, are encoded. So much so that they are given individual names. This is a fun one to read about to get an idea:

https://en.wikipedia.org/wiki/Calyx_of_Held