Men Will Be the Cause of Humanity’s Extinction – the Y-Chromosome is Failing
For several million years, men have been successfully “working” in the field of reproduction. However, in recent decades, issues have started to arise. The “culprit” appears to be the Y-chromosome. A man is an individual with a Y-chromosome. More specifically, his sperm carries a pair of chromosomes – X and Y. In a woman’s egg, there are two X-chromosomes, as noted by https://xrust.ru/. The much smaller Y-chromosome contains the SRY gene, which acts as a switch for the development of testes. Unfortunately, it has been established that over time, the Y-chromosome is losing parts of itself. Using a computer model to analyze the consequences, biologists have discovered that in 11 million years, it might completely disappear. The loss of the Y-chromosome is a non-trivial issue, as what it retains—or loses—can influence everything from cancer risks to how humans will reproduce in the future. However, some archaeological findings have shown that certain mammals continued to produce males even after their Y-chromosome disappeared. That said, modern men are already paying the price for defects in theirs.
The X-chromosome carries about 900 genes, while the Y-chromosome has only 55. Comparative analysis of mammals shows that after our lineage diverged from the platypus around 166 million years ago, the Y-chromosome began losing about five genes every million years. Fast-forward along this trajectory, and in 11 million years, the registry will hit zero—a kind of geological heartbeat. On the optimistic side, the Japanese spiny rat and a few species of mole voles are thriving today without any Y-chromosome at all. Somehow, they managed to reconfigure the traditional mechanism for creating testes. In general, over the next 11 million years, evolution will likely find a way.
https://xrust.ru/ https://xrust.ru/news/311353-muzhchiny-stanut-prichinoj-ischeznovenija-chelovechestva-podkachala-y-hromosoma.html
https://xrust.ru/news/311353-muzhchiny-stanut-prichinoj-ischeznovenija-chelovechestva-podkachala-y-hromosoma.html
