In the world, men are in existential crisis in order to protect the lineage. Scientists fear this crisis is due to constant changes in the Y chromosome.
The American scientific publication PNAS published this information in a study, according to Indian media ABP Anand.
Citing the research paper, the report said that among the 23 pairs of chromosomes in the human body, sex determination chromosomes are XX and XY. XX for girls and XY for boys. The male organ is formed during pregnancy from the Y chromosome. . But the number of genes in this Y chromosome is continuously decreasing.
As mentioned in the paper, the Y chromosome is smaller in size compared to the X chromosome. Number of genes and chem from X chromosome. While X chromosome has 1000 genes, Y chromosome has only 50-200 genes. About 1600 genes have been lost in the last 16.6 million years. In other words, the Y chromosome loses 10 genes every 100,000 years. As the Y chromosome continues to shrink, scientists fear that this male sex-determining chromosome may one day become non-existent. If the Y chromosome disappears, the male will also disappear or not, scientists are thinking about it.
The report also said that scientists have not yet found the reason why the Y chromosome is shrinking. According to some scientists, the Y chromosome is completely solitary. No friends to trade genes with. So as time goes on, their number is decreasing. Therefore, men will completely disappear from the earth, scientists are unwilling to accept this. According to them, the way the Y chromosome is currently changing, it will take several hundred thousand years for them to catch up. By then the alternate Y chromosome will take its place. Because the human body is used to build genes instead of genes.
Recently, another research paper was published in the Proceeding of the National Academy of Science, in which experiments were conducted on a special species of mice in Japan. In that experiment, it is seen that the Y chromosome has completely disappeared in the body of the mouse. Instead, a new gene is created. Evolutionary history also witnessed the creation of alternative chromosomes. There are a number of animals whose Y chromosome has completely disappeared, resulting in a new system of sex determination. Scientists are hopeful that the same can happen in humans.
