But the human Y chromosome is degenerating and may disappear in a few million years, leading to our extinction unless we evolve a new sex gene.
:sicko-no:
Sorry mother nature but we can handle this one ourselves. :liberty-weeping: :stalin-gun-1::stalin-gun-2: As the social basis of gender withers away, and the advancement of technology eliminates the biological basis of the bimodal model of sex in humans, the abolition of gender and sex is inevitable on a timescale of hundreds, not millions of years. :animengels:
The extremely click-bait nature of pop science headlines are very funny when you actually look at whatever they're talking about. Are we going to all die horrible deaths? You'll need to read 3/4 of the article to find out.
Yeah you forgot the reason why, which doesn't make any sense 💀💀💀
In platypus, the XY pair is just an ordinary chromosome, with two equal members. This suggests the mammal X and Y were an ordinary pair of chromosomes not that long ago.
In turn, this must mean the Y chromosome has lost 900–55 active genes over the 166 million years that humans and platypus have been evolving separately. That's a loss of about five genes per million years. At this rate, the last 55 genes will be gone in 11 million years.
Yeah, there are examples of the male chromosome being eliminated (some types of stick insects) but it's way more complex than that. Not only are chromosome degradation processes pretty fast in evolutionary time, highly conserved genes tend to be pretty resistant, sometimes even jumping chromosome if there's a degradation event.
"given the average rate of gene loss over geological time, we're several billion years overdue for ATPase disappearing" is my next pop-sci take.
It depends (there's a lot more than X and Y in the animal kingdom), but broadly and loosely yes. It tends to be long periods of relative stability punctuated by rapid gene loss/transfer, followed by stabilisation of the smaller chromosome. The suppression of recombination that allows for a strong and stable sex division to develop also kind of makes that chromosome less stable. Y and X were probably, originally, hermaphoditic chromosomes that then had one develop a dominant male allele and then to stabilise it developed the SRY gene to regulate it.
:sicko-yes:
:sicko-no:
Sorry mother nature but we can handle this one ourselves. :liberty-weeping: :stalin-gun-1::stalin-gun-2: As the social basis of gender withers away, and the advancement of technology eliminates the biological basis of the bimodal model of sex in humans, the abolition of gender and sex is inevitable on a timescale of hundreds, not millions of years. :animengels:
The extremely click-bait nature of pop science headlines are very funny when you actually look at whatever they're talking about. Are we going to all die horrible deaths? You'll need to read 3/4 of the article to find out.
Yeah you forgot the reason why, which doesn't make any sense 💀💀💀
What kind of logic is that what the hell
Yeah, there are examples of the male chromosome being eliminated (some types of stick insects) but it's way more complex than that. Not only are chromosome degradation processes pretty fast in evolutionary time, highly conserved genes tend to be pretty resistant, sometimes even jumping chromosome if there's a degradation event.
"given the average rate of gene loss over geological time, we're several billion years overdue for ATPase disappearing" is my next pop-sci take.
Ooooooo ty
Also, wouldn't Y-chromosome shrinkage most likely follow an exponential decay curve?
It depends (there's a lot more than X and Y in the animal kingdom), but broadly and loosely yes. It tends to be long periods of relative stability punctuated by rapid gene loss/transfer, followed by stabilisation of the smaller chromosome. The suppression of recombination that allows for a strong and stable sex division to develop also kind of makes that chromosome less stable. Y and X were probably, originally, hermaphoditic chromosomes that then had one develop a dominant male allele and then to stabilise it developed the SRY gene to regulate it.
It's not just decaying for no reason what the fuck who came up with this is it ai written
:disco-Stu: “if these trends continue…”