The X and Y chromosome
A pair of sex chromosomes is one of the 23 pairs of chromosomes found in human cells.
Every bodily cell has the X chromosome. It contains our genes, or the codes for our inherited characteristics.
Persons who are naturally male have one X and one Y chromosome, whereas biologically feminine people have two X chromosomes (XX) (XY).
The X chromosome is now about three times the size of the Y chromosome and contains about 900 genes, whereas the smaller Y chromosome has only about 71 genes and has lost about 97% of its ancestral genes, despite deriving from the same pair of autosomes (non-sex chromosomes).
The Y chromosome had previously been thought to have a very little impact. It has also been suggested that the Y chromosome contains very little genetic information.
Men don't simply lose their hair, muscular mass, and cartilage in their knees as they age. Additionally, they begin losing Y chromosomes from their cells. Genetic decay has also wreaked havoc on the Y chromosome.
What happens when men lose their Y chromosome?
The Y chromosome, while having a reputation for being strong, is a wimp, carrying just 71 genes, or less than one-tenth as many as the X chromosome.
That might be the reason the chromosome isn't always passed on when a cell divides.
The simplest method to identify Y loss is to analyse blood samples, and researchers have discovered that the chromosome is absent from certain white blood cells in roughly 40% of 70-year-olds and 57% of 93-year-olds.
More than 80% of the cells in certain elderly males may lack a Y chromosome.
Even though cells without a Y chromosome can still live and grow, males who lack this chromosome in part of their cells are more prone to develop heart disease, cancer, Alzheimer's disease, and other age-related diseases.
Additionally, the illness may be the cause of males dying on average 5 years earlier than women.
Smokers tend to be more susceptible to the loss of the Y chromosome, which mostly affects cells that divide quickly, such as blood cells.
Men who lose their Y chromosome are more likely to die early and develop age-related diseases like Alzheimer's disease, according to research.
So is it true that Men are dying?
Even if the Y chromosome does vanish in humans, this does not necessarily indicate that males as a species would follow suit. Males and females are both required for reproduction, even in organisms that have fully lost their Y chromosomes.
These species may create men without the need for a Y chromosome because the SRY "master switch" gene, which controls genetic maleness, has shifted to a separate chromosome in these instances.
The same lack of recombination that killed their previous Y chromosome should then cause the new sex-determining chromosome, the one that SRY goes on to, to begin the degeneration process all over again.
Humans are unique in that, despite the Y chromosome's requirement for normal human reproduction, many of the genes it contains are not required if you employ assisted reproductive technologies.
As a result, same-sex female couples or infertile males may soon be able to conceive thanks to genetic engineering, which might replace the Y chromosome's gene function.
Even if everyone could conceive in this manner, it seems exceedingly improbable that fertile people would suddenly quit procreating normally.