Y-chromosome gradually disappearing
Y-chromosome research reveals it is gradually disappearing, leading scientists to explore new genes that might replace it in the future. Over time, the Y-chromosome has been shrinking and losing vital genes, which could affect male biology and reproduction. Researchers are investigating alternative sex-determining genes that could potentially take over the Y-chromosome's role, ensuring the continuation of male-specific traits.
For instance, in some animal species, like certain fish and reptiles, other genetic mechanisms already determine sex. This suggests that the Y-chromosome's decline might not spell the end for male characteristics but rather signal an evolutionary shift. Such studies offer hope that science might find ways to maintain genetic diversity and address challenges that could arise from the Y-chromosome's potential vanishing act.
Source: Science Alert
