Reposted by EMSeonaid
War tends to get the press coverage out of the Horsemen but Pestilence and Famine put up the numbers, historically.
EMSeonaid
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transnational transracial adoptee. cis/het. aro/ace. not white. east coast usa. awkward & weird but good at masking. she/her #FlyEaglesFly pfp: Stardew Valley style portrait of a femme w/ light skin & long black hair, wearing purple banner: 2🦉"cuddling"
![Rebecca Helm, a biologist and an assistant professor at the University of North Carolina, Asheville US writes:
“Friendly neighborhood biologist here. I see a lot of people are talking about biological sexes and gender right now. Lots of folks make biological sex sex seem really simple. Well, since it’s so simple, let’s find the biological roots, shall we? Let’s talk about sex...[a thread]
If you know a bit about biology you will probably say that biological sex is caused by chromosomes, XX and you’re female, XY and you’re male. This is “chromosomal sex” but is it “biological sex”? Well...
Turns out there is only ONE GENE on the Y chromosome that really matters to sex. It’s called the SRY gene. During human embryonic development the SRY protein turns on male-associated genes. Having an SRY gene makes you “genetically male”. But is this “biological sex”?
Sometimes that SRY gene pops off the Y chromosome and over to an X chromosome. Surprise! So now you’ve got an X with an SRY and a Y without an SRY. What does this mean?](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:vjhrhk6me52erjhbtf6orhro/bafkreibomhsjhd4z5penrc2etjwhia7m6qxetuuwzlymnlh6ek4psqxnw4)
