No, it isn't. It isn't part of the brain or the nervous system. It's part of the endocrine system. It's location is next to the brain, not part of it. I mention this specifically because you said "4 other parts of the brain" implying three the pituitary gland was part of it. It isn't.

Here is a page on brain anatomy. The pituitary gland is listed right there alongside every other part of the brain with no distinction saying that it's not really part of brain anatomy. It may be part of the endocrine system, but it's also in the brain. If you believe otherwise, cite your source.

I'm not going to find your link again and sort through it to point out the flaws in your interpretation when I already found one big one. Give me the list of the 4 parts of the brain that your study included or drop your argument regarding this section. The onus is on you to prove your point, not me.

You didn't find one because I've shown sources saying you're wrong and you've provided nothing.

Anyways, dorsoventral neurotube patterning, hindbrain development, positive regulation of neuron differentiation, developmental growth insofar as that means the development of the brain, and neuron development are all ranked higher than pigmentation.

Your definition of race seems to be rather arbitrary.

My definition of race is literally as far from arbitrary as you can get. Arbitrary is when you just randomly pick something. For instance, pink as the color for girls is just a random pick. We could have chosen orange and the world would keep spinning in basically the same way. Ironically, skin color as a stand in for race is pretty fucking random and not even a good measure of race since scientists cannot tell which race a person is from a color blot.

Arbitrary would be if I just picked a number of clusters and said "This is race, deal with it." Non-arbitrary is if I just point out that scientists have already found the best way to categorize us by similarities and that their methods can be customized based on what is appropriate.

It sounds like what you're claiming is that ancestors are essentially a race. How close do you need to be to your cluster to be considered that race? If I'm close to two different clusters, does that make me both or neither?