In the coming times, boys will not be born? Only girls will be born… ‘Y’ chromosome has increased the number

Research on Chromosomes: Whether the foetus growing in the womb of a woman will be a boy or a girl depends on the chromosomes of the parents. Women have two X chromosomes in their body, while men have one Y and another X chromosome. When the XX chromosomes of a man and a woman meet, a girl is born. Whereas when the XY chromosomes meet, boys are born. In this way, the presence of a Y chromosome is necessary for the birth of a boy. If the Y chromosome of men is lost, then boys will not be born, only girls will be born.

A similar threat has been expressed in a report by Science Alert, which says that the Y chromosome in men is gradually decreasing. In this way, the entire future of humans is in danger. However, it may take millions of years for the Y chromosome to be extinct. If humans do not develop a new gene as an alternative to the Y chromosome and the decline of the Y chromosome continues, then human life will end from the earth.

The Y chromosome determines the birth of a male
The male chromosome has about 900 X genes while the female chromosome has about 55 genes, while there is a lot of non-coding DNA. The Y chromosome has a key gene that develops the fetus into a male. After about 12 weeks of conception, this master gene takes over other genes and makes the fetus produce male hormones. This ensures that the fetus develops as a male.

Y chromosomes are decreasing at this speed
The new research focuses on the fact that the disparity between the two chromosomes is increasing. In the last 166 million years, the Y chromosome has lost 900-55 active genes. In this way, 5 genes are decreasing every 10 lakh years. At the speed at which the Y chromosomes are decreasing, they will be completely extinct in the coming 11 million years. The decreasing number of Y chromosomes has put scientists in tension.

Can a male be born without the Y chromosome?
Amid the decline of the Y chromosome, scientists have found relief from two species of mice that are still alive even after the loss of the Y chromosome. Spiny mice have been found in Eastern Europe and Japan, in whose species the X chromosome performs both functions. However, it is not yet known how the sex is determined without the Y gene. In the new research, Kuroiwa’s team said that sperm is needed for reproduction. For this, the presence of men is necessary. This makes it clear that the loss of the Y chromosome is like the loss of humans.

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