In terms of how that affects biological sexual development and associated gender identity i can’t say offhand and it would likely be a rabbit hole that one can spend hours looking into.
TL;DW: your understanding is a simplification. It an assumption that allows educators to move past complex nuances when teaching about broader topics as part of a general education. Chromosomes and gene expression are a chaotic mess in reality.
Please can you explain this in genetic terms?
As I understood it, sex is determined by the presence, or absence, of a Y chromosome, at the 23rd pair.
While exceptions exist, they’re incredibly rare genetic observations and I have never heard or read it referred to as a “spectrum”.
Yeah it’s the first time I’ve heard of it referred to as a spectrum. Although the term is insensitive it’s more like two sides with a few outliers.
You have your XX females and your XY males making up 99.9% of the population and then some individuals who are XXY, XYY, or XXX. You can even have some who are XXXY, XXYY, or XXXX.
In terms of how that affects biological sexual development and associated gender identity i can’t say offhand and it would likely be a rabbit hole that one can spend hours looking into.
https://youtu.be/kT0HJkr1jj4?si=_gOsunaQoUZ0bg0W
TL;DW: your understanding is a simplification. It an assumption that allows educators to move past complex nuances when teaching about broader topics as part of a general education. Chromosomes and gene expression are a chaotic mess in reality.
Some figures claim that 1.7 percent of the population is some form of intersex, which is more common than having red hair I believe.