I read your response yesterday evening, and was just going to take the lesson and move on. But that wouldn't be fair to you. You are right. I was wrong. I was

I read your response yesterday evening, and was just going to take the lesson and move on. But that wouldn't be fair to you. You are right. I was wrong. I was taught that X inactivation happens so early in development (I think pre-neural tube, no?? if so, that's like what, 200 total cells?) that all neurons, or at least all neural subtypes (e.g. Purkinje, pyramidal, basket, etc) all have the same dominant X chr. When I saw the picture in the NYT article you linked, I was immediately like- no. fucking. way! Well, anyway. I'm sorry about that; and I appreciate the enlightenment. That said, you should check out figure 8 in the original article. I'd be interested to know what you think. Here's a direct link: https://www.sciencedirect.com/science/article/pii/S0896627313010039#fig8 https://www.sciencedirect.com/science/article/pii/S089662731... (the paragraph just above the figure is helpful to read)