Gender studies

In the context of my previous post about Mendel's genetics, we should consider that these principles of genetic inheritance and how the human body develops is subject to genetic changes too. 

There's a topic that gets debated a lot: gender. As the attached article points out:

So how sensible is it to determine sex after birth, as is mostly done at the moment, solely on the basis of externally visible sexual characteristics?

We assume there are only two sexes, based on the somewhat obvious difference in the human body. And use the Bible as a sort of proof that this must be right. 

But the genetics suggests otherwise, and these X and Y chromosomes that help us develop are more complicated than it may seem. 

This article is from a German publication (it's in English) and points to some studies that take away a lot of the rhetoric and focus on the science. 

If we as people would just take the time to study and learn, rather than just rallying around some ideal, maybe we could see that there are some variations in our genetics and therefore there are more than two sexes. 

I can accept that not everyone looks like me. Some people are taller. Some have more hair. Some have different colored skin.  I would think they might have different genetic sexes too. 

https://www.dw.com/en/even-the-science-agrees-there-are-more-than-two-genders/a-57062033